Inorganic salts of sulfurous acid.
Substances which are of little or no therapeutic value, but are necessary in the manufacture, compounding, storage, etc., of pharmaceutical preparations or drug dosage forms. They include SOLVENTS, diluting agents, and suspending agents, and emulsifying agents. Also, ANTIOXIDANTS; PRESERVATIVES, PHARMACEUTICAL; COLORING AGENTS; FLAVORING AGENTS; VEHICLES; EXCIPIENTS; OINTMENT BASES.
Substances which are of little or no nutritive value, but are used in the processing or storage of foods or animal feed, especially in the developed countries; includes ANTIOXIDANTS; FOOD PRESERVATIVES; FOOD COLORING AGENTS; FLAVORING AGENTS; ANTI-INFECTIVE AGENTS (both plain and LOCAL); VEHICLES; EXCIPIENTS and other similarly used substances. Many of the same substances are PHARMACEUTIC AIDS when added to pharmaceuticals rather than to foods.
Substances capable of inhibiting, retarding or arresting the process of fermentation, acidification or other deterioration of foods.
An enzyme found primarily in SULFUR-REDUCING BACTERIA where it plays an important role in the anaerobic carbon oxidation pathway.
Oxidoreductases with specificity for oxidation or reduction of SULFUR COMPOUNDS.
A NADPH-dependent oxidase that reduces hydrogen sulfite to HYDROGEN SULFIDE. It is found in many microoganisms.
A FERREDOXIN-dependent oxidoreductase that is primarily found in PLANTS where it plays an important role in the assimilation of SULFUR atoms for the production of CYSTEINE and METHIONINE.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
A group of proteins possessing only the iron-sulfur complex as the prosthetic group. These proteins participate in all major pathways of electron transport: photosynthesis, respiration, hydroxylation and bacterial hydrogen and nitrogen fixation.
An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine.
A MOLYBDENUM requiring enzyme that catalyzes the terminal reaction in the oxidative degradation of SULFUR AMINO ACIDS with the formation of a sulfate. A deficiency of sulfite oxidase results in sulfocysteinuria.
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
Substances added to pharmaceutical preparations to protect them from chemical change or microbial action. They include ANTI-BACTERIAL AGENTS and antioxidants.
Legally authorized corporations owned and managed by one or more professionals (medical, dental, legal) in which the income is ascribed primarily to the professional activities of the owners or stockholders.
Fermented juice of fresh grapes or of other fruit or plant products used as a beverage.
Accidental or deliberate use of a medication or street drug in excess of normal dosage.
The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.
A pro-apoptotic protein and member of the Bcl-2 protein family that is regulated by PHOSPHORYLATION. Unphosphorylated Bad protein inhibits the activity of BCL-XL PROTEIN.
A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.
A species of bacteria present in man and many kinds of animals and birds, often causing infertility and/or abortion.
The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation of a wide variety of HEADACHE DISORDERS.
Various conditions with the symptom of HEADACHE. Headache disorders are classified into major groups, such as PRIMARY HEADACHE DISORDERS (based on characteristics of their headache symptoms) and SECONDARY HEADACHE DISORDERS (based on their etiologies). (International Classification of Headache Disorders, 2nd ed. Cephalalgia 2004: suppl 1)
Use of written, printed, or graphic materials upon or accompanying a product or its container or wrapper. It includes purpose, effect, description, directions, hazards, warnings, and other relevant information.
The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.
Use of written, printed, or graphic materials upon or accompanying a food or its container or wrapper. The concept includes ingredients, NUTRITIONAL VALUE, directions, warnings, and other relevant information.
Form in which product is processed or wrapped and labeled. PRODUCT LABELING is also available.
A system of safety management (abbreviated HACCP) applied mainly to the food industry. It involves the analysis and control of biological, chemical, and physical hazards, from raw material production, procurement and handling, to manufacturing, distribution and consumption of finished products.
Disorders of increased melanin pigmentation that develop without preceding inflammatory disease.
Examination of foods to assure wholesome and clean products free from unsafe microbes or chemical contamination, natural or added deleterious substances, and decomposition during production, processing, packaging, etc.
Inorganic or organic acids that contain sulfur as an integral part of the molecule.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.
An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.
Inorganic compounds that contain barium as an integral part of the molecule.
A plant genus of the family ORCHIDACEAE that is the source of the familiar flavoring used in foods and medicines (FLAVORING AGENTS).
Several plant species of the genus VACCINIUM known for the edible blueberry fruit.
A plant species of the family FABACEAE that yields edible seeds, the familiar peanuts, which contain protein, oil and lectins.
A greenish-yellow, diatomic gas that is a member of the halogen family of elements. It has the atomic symbol Cl, atomic number 17, and atomic weight 70.906. It is a powerful irritant that can cause fatal pulmonary edema. Chlorine is used in manufacturing, as a reagent in synthetic chemistry, for water purification, and in the production of chlorinated lime, which is used in fabric bleaching.
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
The removal of contaminating material, such as radioactive materials, biological materials, or CHEMICAL WARFARE AGENTS, from a person or object.
Inorganic compounds that contain chlorine as an integral part of the molecule.
A genus of coccidian parasites of the family CRYPTOSPORIDIIDAE, found in the intestinal epithelium of many vertebrates including humans.
The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)
Inland bodies of standing FRESHWATER usually smaller than LAKES. They can be man-made or natural but there is no universal agreement as to their exact size. Some consider a pond to be a small body of water that is shallow enough for sunlight to reach the bottom.
That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.
Any substances taken in by the body that provide nourishment.
The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.
The process by which the nature and meaning of olfactory stimuli, such as odors, are recognized and interpreted by the brain.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.

Evidence on the conformation of HeLa-cell 5.8S ribosomal ribonucleic acid from the reaction of specific cytidine residues with sodium bisulphite. (1/981)

The reaction of HeLa-cell 5.8S rRNA with NaHSO3 under conditions in which exposed cytidine residues are deaminated to uridine was studied. It was possible to estimate the reactivities of most of the 46 cytidine residues in the nucleotide sequence by comparing 'fingerprints' of the bisulphite-treated RNA with those of untreated RNA. The findings were consistent with the main features of the secondary-structure model for mammalian 5.85S rRNA proposed by Nazar, Sitz, & Busch [J. Biol. Chem (1975) 250, 8591--8597]. Five out of six regions that are depicted in the model as single-stranded loops contain cytidine residues that are reactive towards bisulphite at 25 degrees C (the other loop contains no cytidine). The cytidine residue nearest to the 3'-terminus is also reactive. Several cytidines residues that are internally located within proposed double-helical regions show little or no reactivity towards bisulphite, but the cytidine residues of several C.G pairs at the ends of helical regions show some reactivity, and one of the proposed loops appears to contain six nucleotides, rather than the minimum of four suggested by the primary structure. Two cytidine residues that are thought to be 'looped out' by small helix imperfections also show some reactivity.  (+info)

DNA demethylase is a processive enzyme. (2/981)

DNA methylation patterns are generated during development by a sequence of methylation and demethylation events. We have recently demonstrated that mammals bear a bona fide demethylase enzyme that removes methyl groups from methylated cytosines. A general genome wide demethylation occurs early in development and in differentiating cell lines. This manuscript tests the hypothesis that the demethylase enzyme is a processive enzyme. Using bisulfite mapping, this report demonstrates that demethylase is a processive enzyme and that the rate-limiting step in demethylation is the initiation of demethylation. Initiation of demethylation is determined by the properties of the sequence. Once initiated, demethylation progresses processively. We suggest that these data provide a molecular explanation for global hypomethylation.  (+info)

Sulfitobacter mediterraneus sp. nov., a new sulfite-oxidizing member of the alpha-Proteobacteria. (3/981)

Analysis of PCR products of 16S rDNA of 680 isolates from Mediterranean Sea mesocosm experiments with taxon-specific 16S rDNA oligonucleotides revealed that 262 isolates belonged to the alpha subclass of the class Proteobacteria. Partial 16S rDNA sequence analysis of selected isolates and oligonucleotide probing with a Sulfitobacter-specific 16S rDNA probe affiliated 33 strains to the genus Sulfitobacter. Analysis of the HaeIII digest pattern of 16S rDNA revealed the presence of two groups; while 30 strains showed a pattern identical with that obtained for Sulfitobacter pontiacus DSM 10014T, a second group of three strains had a unique pattern that was different from that of the type strain. Five isolates of group 1 and one isolates of group 2, strain CH-B427T, were selected for detailed taxonomic analysis. All six isolates closely resembled the type strain Sulfitobacter pontiacus DSM 10014T in physiological reactions. However, strain CH-B427T differed quantitatively in the composition of fatty acids from Sulfitobacter pontiacus DSM 10014T and showed only 98.2% 16S rDNA sequence similarity with strain DSM 10014T. DNA-DNA reassociation value obtained for strains DSM 10014T and CH-B427T revealed 46% similarity. Based on the results of DNA-DNA reassociation and discrete differences in the nucleotide composition of 16S rDNA, a new species of the genus Sulfitobacter is proposed, designated Sulfitobacter mediterraneus sp. nov., the type strain being strain CH-B427T (= DSM 12244T).  (+info)

The relationship between pH and concentrations of antioxidants and vasoconstrictors in local anesthetic solutions. (4/981)

pH affects the efficacy of local anesthetics by determining the percentage of the lipid-soluble base form of the anesthetic available for diffusion and penetration of the nerve sheath. The purpose of this study was to determine the relationship between pH and the concentrations of antioxidant and vasoconstrictor in dental local anesthetic solutions over real-time and after accelerated aging. Several batches of lidocaine and mepivacaine with vasoconstrictors were tested. Results showed that, immediately upon receipt from the manufacturers, three batches were below the USP pH limit (pH 3.3), and two batches contained less than the minimum limit of vasoconstrictors (90%). Real-time tests on batches that were within normal limits revealed that solutions were stable past 4 yr. Accelerated aging tests revealed a strong correlation between a decrease in pH and loss of antioxidants and vasoconstrictors. In conclusion, a quality batch of local anesthetic should remain efficacious long past the manufacturer's stated shelf life; a batch that is less than optimal, or one that is exposed to environmental stresses, will degrade rapidly, and efficacy may be affected by decreases in pH and loss of vasoconstrictor. pH may be an inexpensive, readily available screening test for efficacy of local anesthetics.  (+info)

CpG island methylator phenotype in colorectal cancer. (5/981)

Aberrant methylation of promoter region CpG islands is associated with transcriptional inactivation of tumor-suppressor genes in neoplasia. To understand global patterns of CpG island methylation in colorectal cancer, we have used a recently developed technique called methylated CpG island amplification to examine 30 newly cloned differentially methylated DNA sequences. Of these 30 clones, 19 (63%) were progressively methylated in an age-dependent manner in normal colon, 7 (23%) were methylated in a cancer-specific manner, and 4 (13%) were methylated only in cell lines. Thus, a majority of CpG islands methylated in colon cancer are also methylated in a subset of normal colonic cells during the process of aging. In contrast, methylation of the cancer-specific clones was found exclusively in a subset of colorectal cancers, which appear to display a CpG island methylator phenotype (CIMP). CIMP+ tumors also have a high incidence of p16 and THBS1 methylation, and they include the majority of sporadic colorectal cancers with microsatellite instability related to hMLH1 methylation. We thus define a pathway in colorectal cancer that appears to be responsible for the majority of sporadic tumors with mismatch repair deficiency.  (+info)

Confluence-induced alterations in CpG island methylation in cultured normal human fibroblasts. (6/981)

Growth constraint of bacterial and human cells has been shown to trigger genetic mutation. We questioned whether growth constraint might also trigger epigenetic mutation in the form of CpG island methylation. Logarithmically growing normal human fibro-blasts (NHF) displayed little (0-15%) CpG methylation in select regions of three CpG islands [estrogen receptor (ER), E-cadherin (ECAD) and O (6)-methylguanine-DNA methyltransferase (MGMT)] examined. NHF grown to and left at confluence for 2-21 days showed little (<10%) CpG methylation in the ER and ECAD CpG islands. These confluent, growth-arrested cells, however, displayed extensive ( approximately 50%) methylation of the MGMT CpG island. CpG methylation in the MGMT CpG island was not associated with cellular senescence. The methylation was, however, heritable, but not permanent, as the level of CpG methylation in the MGMT CpG island of cells 4 population doublings following replating after confluence were no different from those in confluent cultures, but returned to levels noted in logarithmically growing cells by 10 population doublings following replating. These results suggest that growth constraint can trigger transient epigenetic change even in normal non-senescent human cells.  (+info)

Mechanism, structure-activity studies, and potential applications of glutathione S-transferase-catalyzed cleavage of sulfonamides. (7/981)

The mechanism of sulfonamide cleavage of PNU-109112, a potent HIV-1 protease inhibitor, by glutathione-S-transferase (GST) was investigated in the presence of reduced GSH. GST-catalyzed sulfonamide cleavage takes place via the nucleophilic attack of GSH on the pyridine moiety of the substrate with formation of the GS-para-CN-pyridinyl conjugate, the corresponding amine, and sulfur dioxide. Structure activity studies with a variety of sulfonamides indicate that an electrophilic center alpha to the sulfonyl group is required for cleavage. Substituents that withdraw electron density from the carbon atom alpha- to the sulfonyl group facilitate nucleophilic attack by the GS(-) thiolate bound to GST. The rate of sulfonamide cleavage is markedly affected by the nature of the electrophilic group; replacement of para-CN by para-CF(3) on the pyridine ring of PNU-109112 confers stability against sulfonamide cleavage. On the other hand, stability of sulfonamides is less dependent on the nature of the amine moiety. These principles can be applied to the synthesis of sulfonamides, labile toward cellular GST, that may serve as prodrugs for release of bioactive amines. Tumors are particularly attractive targets for these sulfonamide prodrugs as GST expression is significantly up-regulated in many cancer cells. Another potential application could be in organic synthesis, where protection of amines as the corresponding activated sulfonamides can be reversed by GST/GSH under mild conditions.  (+info)

Reduction of adenosine-5'-phosphosulfate instead of 3'-phosphoadenosine-5'-phosphosulfate in cysteine biosynthesis by Rhizobium meliloti and other members of the family Rhizobiaceae. (8/981)

We have cloned and sequenced three genes from Rhizobium meliloti (Sinorhizobium meliloti) that are involved in sulfate activation for cysteine biosynthesis. Two of the genes display homology to the Escherichia coli cysDN genes, which code for an ATP sulfurylase (EC The third gene has homology to the E. coli cysH gene, a 3'-phosphoadenosine-5'-phosphosulfate (PAPS) reductase (EC, but has greater homology to a set of genes found in Arabidopsis thaliana that encode an adenosine-5'-phosphosulfate (APS) reductase. In order to determine the specificity of the R. meliloti reductase, the R. meliloti cysH homolog was histidine tagged and purified, and its specificity was assayed in vitro. Like the A. thaliana reductases, the histidine-tagged R. meliloti cysH gene product appears to favor APS over PAPS as a substrate, with a Km for APS of 3 to 4 microM but a Km for PAPS of >100 microM. In order to determine whether this preference for APS is unique to R. meliloti among members of the family Rhizobiaceae or is more widespread, cell extracts from R. leguminosarum, Rhizobium sp. strain NGR234, Rhizobium fredii (Sinorhizobium fredii), and Agrobacterium tumefaciens were assayed for APS or PAPS reductase activity. Cell extracts from all four species also preferentially reduce APS over PAPS.  (+info)

Press Release issued Apr 20, 2016: Sodium Metabisulfite is a white or yellowish white inorganic compound which is composed of sodium, sulfur and oxygen. Sodium Metabisulfite is also known as Disodium or Sodium pyrosulfite. The Sodium metabisulfite is readily soluble in water and glycerin. Primarily Sodium metabisulfite is used as reducing agent, food preservative and food additive. The characteristic use such as reducing agents, food preserving agents, sanitizing agent, Cleaning Agent and others make Sodium metabisulfite a very useful substance which can be utilized in diverse range of end use sectors. The chemical and pharmaceutical industry uses Sodium metabisulfite as a strong reducing agent, an important element in numerous chemical and pharmaceutical processes. The food processing industry where Sodium metabisulfite is used as preservative and food additive is another sector where huge growth lies for Sodium metabisulfite market. The wide and increasing scope of end use application of Sodium
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Huanggang Rong Jin chemical Co., Ltd. has been issued by the state to produce a variety of documents, sodium sulfite, Hubei Province, the largest food additive production enterprises, the market share of more than 15%, annual output of 50000 tons.
So why do some wines have more sulfites than others? And why do we add sulfites? Well, the history of added sulfites in wine dates back to Ancient Egypt, Greek, and Roman times. Vintners would burn pieces of sulfur in the empty vessels before filling them with wine in order to keep the wine from turning into vinegar (a process that happens naturally due mostly to a specific bacteria named acetobacter that is found all over the world). Sulfites keep the wine from turning into vinegar by preventing the growth of bacteria (there are actually several other types of bacteria that can grow in wine and cause spoilage too) as well as preventing the growth of some yeasts as well; hence why sulfites are listed as a preservative. Sulfites also protect the wine from ageing too quickly when the wine is exposed to oxygen; hence why sulfites are listed as an antioxidant. Without sulfites in wine, it is highly likely for your wine to turn into vinegar and/or turn brown and become like cooking sherry in short ...
sufate oxidase, would convert all sulfite to sulfate. In addition, the highly charged nature of these ingredients would result in relatively low dermal penetration.. As used in cosmetics and personal care products, the CIR Expert Panel concluded that Sodium Sulfite, Potassium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Sodium Metabisulfite and Potassium Metabisulfte were safe.. FDA: Link to Code of Federal Regulations for Sodium Sulfite, Sodium Bisulfite, Potassium Bisulfite, Sodium Metabisulfite, and Potassium Metabisulfite. Sodium Sulfite, Potassium Sulfite, and Ammonium Sulfite are listed as inorganic sulphites ...
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The report generally describes sodium metabisulfite, examines its uses, production methods, patents. Sodium metabisulfite market situation is overviewed;
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[122 Pages Report] Check for Discount on United States Sodium Metabisulfite Market Report 2016 report by QYResearch Group. Notes: Sales, means the sales volume of Sodium Metabisulfite Revenue,...
Global Potassium Metabisulfite Consumption 2016 Market Research Report ​is a new market research publication announced by Reportstack. This report is a professional and in-depth study on the current state of the Potassium Metabisulfite market.. First, the report provides a basic overview of the Potassium Metabisulfite industry including definitions, classifications, applications and industry chain structure. And development policies and plans are discussed as well as manufacturing processes and cost structures.. Secondly, the report states the global Potassium Metabisulfite market size (volume and value), and the segment markets by regions, types, applications and companies are also discussed.. Third, the Potassium Metabisulfite market analysis is provided for major regions including USA, Europe, China and Japan, and other regions can be added. For each region, market size and end users are analyzed as well as segment markets by types, applications and companies.. To view the table of contents ...
Reversal Clearing Bath Problem - Sodium Sulfite or Metabisulfite - posted in Film Stocks and Processing: Hi All, Following Ilfords B&W Reversal Fact Sheet, Ive been experimenting with using Ilford Bromophen 1+1 (with nothing else added) as a first and second developer when processing Super 8 & 16mm Kodak Tri-X. The Ilford fact sheet suggests using the Sulphuric Acid - Potassium Permanganate bleach bath. Following this Ilford recommends using Potassium Metabisulphite 25g...
sodium sulfite definition: nounA white crystalline or powdered compound, Na2SO3, used in preserving foods, silvering mirrors, developing photographs, and making dyes....
SODIUM SULFITE HEPTAHYDRATE (CAS 10102-15-5) Market Research Report 2017 aims at providing comprehensive data on sodium sulfite heptahydrate market
Quality sodium bisulfite NAHSO3 White monoclinic crystalline powder sodium hydrogen sulfite for sale from NINGBO SOURCE CHEMICAL CO.,LTD - it is a professional sodium bisulfite NAHSO3 White monoclinic crystalline powder sodium hydrogen sulfite manufacturer providing high quality sodium bisulfite NAHSO3 White monoclinic crystalline powder sodium hydrogen sulfite for you. sodium bisulfite NAHSO3 White monoclinic crystalline powder sodium hydrogen sulfite details:(Sodium bisulphite Molecular Formula: NaHSO3 Molecular Weight: 104.06 Appearance: White crystal grain).
All wines contain at least some small amount of sulfites. They are a natural result of the same fermentation process that turns grape juice into alcohol. Even wines that have not had any sulfites added during the winemaking process contain some amount of sulfites. Sulfur dioxide (SO2) is used by winemakers to keep freshly pressed must from spoiling. It keeps down the activities of native yeast and bacteria and preserves the freshness of the wine. Modern technology has allowed the use of significantly less sulfur than was used in the past but some is necessary to make a stable wine. Regulations in the United States require that domestic and imported wines carry warning labels if they have sulfites in excess of 10 parts per million. Wines that have less than 10 parts per million are not required to carry the Contains Sulfites label but they still contain sulfites in some level. ...
LAWRENCE - Winemakers have added sulfites to preserve their products since the time of the Roman Empire. Sulfites, a class of compounds including sulfur dioxide and sulfite salts, act as antioxidants and antibacterial compounds. They can occur naturally in the winemaking process or can be added by producers to preserve freshness and boost flavor in a vintage.. But, according to the U.S. Department of Agriculture, People who have an intolerance to sulfites can experience symptoms including chest tightness, hives, stomach cramps, diarrhea and breathing problems. The underlying mechanisms for sulfite intolerance are not completely understood. For some individuals, though, the sensitivity to sulfites may be an allergic type of response. People with asthma appear to be at an increased risk of having asthma symptoms following exposure to sulfites.. Due to these concerns, since 1988 wines sold in the U.S. containing more than 10 parts per million (10 ppm) of sulfites have been required to include the ...
According to Dr. Herbert Kaufman, a member of the Medical Board of AWARE (American Wine Alliance for Research and Education) in San Francisco, in response to an inquiry presented to him by the Wine Enthusiast magazine (Volume 7, Number 3, April 1994): ..The substance or substances which causes nasal congestion from wine have not been all identified, but some things have been demonstrated not to be the cause. Those include both histamine and a substance called seatonin. Regarding sulfites: While it is possible that sulfites can cause nasal flushing, itching, nasal congestion and even wheezing, there are other foods such as shrimp, prepared potatoes, sauerkraut, dried fruit, various prepared dips, beer and other beverages which contain greater concentration of sulfites than wine. So other foods should be causing the same symptoms.. The exact mechanism of symptom production from sulfites is thought to be through release of breakdown products of sulfites themselves. One reason that sulfites are ...
TY - JOUR. T1 - A systematic study of normalization methods for Infinium 450K methylation data using whole-genome bisulfite sequencing data. AU - Wang, Ting. AU - Guan, Weihua. AU - Lin, Jerome. AU - Boutaoui, Nadia. AU - Canino, Glorisa. AU - Luo, Jianhua. AU - Celedón, Juan Carlos. AU - Chen, Wei. N1 - Funding Information: This study was supported by the Competitive Medical Research Fund (WC) from the University of Pittsburgh, and by grants HL07996 and HL117191 (JCC) from the US. National Institutes of Health.. PY - 2015/1/1. Y1 - 2015/1/1. N2 - DNA methylation plays an important role in disease etiology. The Illumina Infinium HumanMethylation450 (450K) BeadChip is a widely used platform in large-scale epidemiologic studies. This platform can efficiently and simultaneously measure methylation levels at ∼480,000 CpG sites in the human genome in multiple study samples. Due to the intrinsic chip design of 2 types of chemistry probes, data normalization or preprocessing is a critical step to ...
In none of the studies conducted in preganat rats, mice, hamsters and rabbits with oral administration of sodium bisulfite, sodium metabisulfite, potassium metabisulfite or sodium thiosulfate by gavage during the phase of organogenesis clear evidence of discernible effects on nidation or on maternal or foetal survival were observed. The number of abnormalities seen in either soft or skeletal tissues of the test groups did not differ from the number occurring spontaneously in the sham-treated controls. Thus, the NOAELs for maternal and developmental toxicity can be expected above the highest dose levels investigated: - sodium metabisulfite in rabbits: , 123 mg/kg bw/d - potassium metabisulfite in rats: , 155 mg/kg bw/d - potassium metabisulfite in mice: , 125 mg/kg bw/d - sodium bisulfite in mice: , 150 mg/kg bw/d - sodium bisulfite in rats: , 110 mg/kg bw/d - sodium bisulfite in hamsters: , 120 mg/kg bw/d - sodium bisulfite in rabbits: , 100 mg/kg bw/d - sodium thiosulfate in mice: , 550 mg/kg ...
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Whole-genome bisulfite sequencing (WGBS) is becoming an increasingly accessible technique, used widely for both fundamental and disease-oriented research. Library preparation methods benefit from a variety of available kits, polymerases and bisulfite conversion protocols. Although some steps in the procedure, such as PCR amplification, are known to introduce biases, a systematic evaluation of biases in WGBS strategies is missing. We perform a comparative analysis of several commonly used pre- and post-bisulfite WGBS library preparation protocols for their performance and quality of sequencing outputs. Our results show that bisulfite conversion per se is the main trigger of pronounced sequencing biases, and PCR amplification builds on these underlying artefacts. The majority of standard library preparation methods yield a significantly biased sequence output and overestimate global methylation. Importantly, both absolute and relative methylation levels at specific genomic regions vary substantially
Flow sheet options for integrating ethanol production from spent sulfite liquor (SSL) into the acid-based sulfite pulping process at the Sappi Saiccor mill (Umkomaas, South Africa) were investigated, including options for generation of thermal and electrical energy from onsite bio-wastes, such as bark. Processes were simulated with Aspen Plus® for mass- and energy-balances, followed by an estimation of the economic viability and environmental impacts. Various concentration levels of the total dissolved solids in magnesium oxide-based SSL, which currently fuels a recovery boiler, prior to fermentation was considered, together with return of the fermentation residues (distillation bottoms) to the recovery boiler after ethanol separation. The generation of renewable thermal and electrical energy from onsite bio-wastes were also included in the energy balance of the combined pulping-ethanol process, in order to partially replace coal consumption. The bio-energy supplementations included the combustion of
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Sodium metabisulfite is an inorganic compound frequently used as a disinfectant, antioxidant and preservative agent. It is used as a cleaning agent for potable water reverse osmosis membranes in desalination systems. It is also used to remove chloramine from drinking water after treatment.
Sodium Metabisulfite Market: By Grade (Food, Non Food, Photo) By End-Use Industry (Food & beverages, Pharmaceutical, Water treatment, Paper & pulp, Photographic and film) - Market research report and industry analysis - 10582138
Glossary of terms for the photographic industry Sodium metabisulfite Is used as an acidifying agent in acid fixing baths. - SWPP
Reduced representation bisulfite sequencing (RRBS) is an efficient and high-throughput technique used to analyze the genome-wide methylation profiles on a single nucleotide level. This technique combines restriction enzymes and bisulfite sequencing in order to enrich for the areas of the genome that have a high CpG content. Due to the high cost and depth of sequencing needed to analyze methylation status in the entire genome, Meissner et al. developed this technique in 2005 in order to reduce the amount of nucleotides needed to be sequenced to 1% of the genome. The fragments that comprise the reduced genome still include the majority of promoters, as well as regions such as repeated sequences that are difficult to profile using conventional bisulfite sequencing approaches. Enzyme digestion: First, genomic DNA is digested using a methylation-insensitive restriction enzyme. It is integral for the enzymes to not be influenced by the methylation status of the CpGs (sites within the genome where a ...
Potassium metabisulfite is a common wine or must additive, in which it forms sulfur dioxide gas (SO2). This both prevents most wild microorganisms from growing, and it acts as a potent antioxidant, protecting both the color and delicate flavors of wine. A high dose would be 3 grams of potassium metabisulfite per six-gallon bucket of must (yielding roughly 75 ppm of SO2) prior to fermentation; then 6 grams per six-gallon bucket (150 ppm of SO2) at bottling. Most commercial wineries do not add more than 30 ppm at bottling.[citation needed] Some countries impose regulations on how much SO2 wines are allowed to contain.[4] Winemaking equipment is sanitized by spraying with a 1% SO2 (2 tsp potassium metabisulfite per L) solution. ...
POTASSIUM METABISULFITE 16731-55-8 MSDS report, POTASSIUM METABISULFITE MSDS safety technical specifications search, POTASSIUM METABISULFITE safety information specifications ect.
Bisulfite sequencing is widely employed to study the role of DNA methylation in disease; however, the data suffer from biases due to coverage depth variability. Imputation of methylation values at low-coverage sites may mitigate these biases while also identifying important genomic features associated with predictive power. Here we describe BoostMe, a method for imputing low-quality DNA methylation estimates within whole-genome bisulfite sequencing (WGBS) data. BoostMe uses a gradient boosting algorithm, XGBoost, and leverages information from multiple samples for prediction. We find that BoostMe outperforms existing algorithms in speed and accuracy when applied to WGBS of human tissues. Furthermore, we show that imputation improves concordance between WGBS and the MethylationEPIC array at low WGBS depth, suggesting improved WGBS accuracy after imputation. Our findings support the use of BoostMe as a preprocessing step for WGBS analysis.
hemical formula: Na2SO3 Molecular weight: 126.04 Main ingredients: pure product Appearance and properties: colorless, single crystal or powder. Melting point ...
I have heard this before, but I cannot figure out how sodium sulfite changes the power of the developer? Why do you think this chemical affects the activity of the developer ...
Thank you for your reply. : In fact, sodium sulfite is cheap and Im used to employ it. I just want to accelerate its reaction velocity with oxygen by adding the catalyst. : Ill try to visit AWT. : Regards ...
I have made 2 batches of of plain hypo fixer for my toning process that has gotten milky/cloudy after fixing approximately 50 8x10 prints. I am using some old Zone VI hypo (anhydrous I assume since it is 673 grams for making a gallon). To that hypo, I add 120 grams of sodium sulfite. It is hot in the south and my fixing bath was 77 degrees, if that has anything to do with it. In my printing process, I use fixer 24 at 4 minutes, then wash and dry the prints for toning later. When I tone,
[65 Pages Report] Check for Discount on SODIUM SULFITE HEPTAHYDRATE Global Market and Forecast Research report by ChemReport. DescriptionWe provide independent and unbiased information on manufacturers, prices, production...
Since the time of the Roman Empire, winemakers have added sulfites to preserve their products. Sulfites, a class of compounds including sulfur dioxide and sulfite salts, act as antioxidants and antibacterial compounds. They can occur naturally in the winemaking process or can be added by producers to preserve freshness and boost flavor in a vintage.. However, the US Department of Agriculture stated, People who have an intolerance to sulfites can experience symptoms including chest tightness, hives, stomach cramps, diarrhea and breathing problems.. Now, the University of Kansas School of Engineering is working toward the design and marketing of a low-cost, easy-to-use device that would filter up to 99% of sulfites from wine when it is poured from the bottle.. Our idea is that youd have a device like an aerator, said Mark Shiflett, foundation distinguished professor of Chemical & Petroleum Engineering, who is leading the investigation. Youd stick it on the top of the bottle - and as you ...
Strong America Ltd. is recalling a dried potato product imported from China that may contain sulfites, which are not listed on the label.. According to the notice, the recall was initiated after routine sampling by New York State Department of Agriculture and Markets Food Inspectors and subsequent analysis by Food Laboratory personnel revealed the presence of sulfites in the product which were not declared on the label.. The consumption of 10 milligrams of sulfites per serving has been reported to elicit severe reactions in some asthmatics. Anaphylactic shock could occur in certain sulfite sensitive individuals upon ingesting 10 milligrams or more of sulfites. Analysis of the Dried Potato revealed that it contained 36 milligrams per serving.. No adverse reactions have been reported.. The recalled dried potato is packed in 6 oz. packages under the brand name Golden Smell and was sold in NY, MA and PA. Consumers can return the recalled product to the place of purchase for a full refund. ...
FOR IMMEDIATE RELEASE - October 8, 2015 - Tristar Food Wholesale Co. Inc. 115 Amity Street, Jersey City, NJ 07304 is recalling Heng Cheong Loong Co. (HCL) Dried Golden Raisins because it contains undeclared sulfites. People who have severe sensitivity to sulfites run the risk of serious or life threatening allergic reactions if they consume this product. The consumption of 10 milligrams of sulfites per serving has been reported to elicit severe reaction in some asthmatics. Anaphylactic shock could occur in certain sulfite sensitive individuals upon ingesting 10 milligrams or more of sulfites ...
In this study, we sought to determine whether the increases in peroxidase activity and electrolyte leakage induced in maize (Zea mays L.) leaves by sodium bisulfite were causally related to the sodium bisulfite-induced increases in sporulation of the pathogen Bipolaris maydis race T on infected maize leaves. Pretreatment of detached leaves of maize inbred W64 A with sodium bisulfite (500 ,ig/ml) for 24 h in the dark at 28°C increased peroxidase activity in the Tms cytoplasm (susceptible) isoline compared with the N cytoplasm (resistant) isoline. No such differences in peroxidase activity between the two isolines were observed when detached leaves were pretreated with double distilled water. The sodium bisulfite-induced increase in peroxidase activity persisted even when leaves pretreated with sodium bisulfite were inoculated with R maydis race T and subsequently incubated for 48 h in the dark at 28° C. Similarly, pretreatment with sodium bisulfite caused a greater increase in electrolyte ...
The USDA is just prohibiting the growth of the Organic Wine category by not allowing ANY sulfites to be added. It is strange that wines made with organic grapes are put in the same category as a commercial wine, and being forced to put sulfites added on their label. This has a negative connotation, especially for those who do not understand that sulfites are not the cause of many allergies, and organic wineries are not adding the same levels as a typical commercial winery. Instead, there should be a cap on how many sulfites Organic Wines are allowed to include under the USDA certification, then those organic wineries that choose not to add any suflites could have the added benefit of putting NO sulfites added on their label. Win-Win for everyone and the Organic Wine movement can thrive and gain some momentum. ...
I am trying to obtain as much information as I can in reference to organic wine and sulfites. I am a diabetic and I am also allergic to sulfites. I have not been able to get any sound information on the subject. I would like to know if organic wine has any of its own natural sulfites. It would be great to have an occasional glass of wine but I am afraid to attempt it until I can get a better definition about the sulfites. I am allergic to sulfur in medication which is how I found out that was my problem with having alcoholic drinks. I look forward to hearing from you. And thank you for your time. ...
Diagenodes Premium RRBS(Reduced representation bisulfite sequencing) kit obtained excellent results with almost 90% alignment rate, 4.1 million CpGs covered and bisulfite conversion rates around 99.5% for all samples
Sulfiting agents, sodium bisulfite and sodium metabisulfite, are used with shrimp, lobster and related crustaceans to prevent melanosis (a.k.a. blackspot). While sulfiting agents are very beneficial to the seafood industry, some consumers are highly allergic to sulfite residues in food. For this reason, FDA regulations state that seafood containing sulfite residues of 10 parts per million (ppm) or more must be labeled as containing sulfites. Monitoring and verification of sulfite residues are required as part of a Hazard Analysis and Critical Control Points (HACCP) program. Alert® for Sulfites is a very simple and rapid semi-quantitative test for detecting sulfite residues in shrimp ...
Sequencing-based approaches have led to new insights about DNA methylation. While many different techniques for genome-scale mapping of DNA methylation have been employed, throughput has been a key limitation for most. To further facilitate the mapping of DNA methylation, we describe a protocol for gel-free multiplexed reduced representation bisulfite sequencing (mRRBS) that reduces the workload dramatically and enables processing of 96 or more samples per week. mRRBS achieves similar CpG coverage to the original RRBS protocol, while the higher throughput and lower cost make it better suited for large-scale DNA methylation mapping studies, including cohorts of cancer samples. ...
Sodium pyrosulfite or disodium are other names for this sodium salt of sulfurous acid. Chemical formula is: Na2S2O5. This sulfite is used in similar ways than the other ones in food processing and manufacturing. It is common ingredient used in bakeries, like other forms of sulfites, it is used as a dough conditioner to enhance…

No data available that match "sulfites"

Sodium Sulphite anhydr. 25g. Metol 1g. Hydroquinone 2g. Sodium Carbonate 3g. Potassium Bromide 0.4g. Water to 1000 ml Very kind ... Sodium Sulphite anhydr. 50g. Hydroquinone 3.5g. Sodium Citrate 10g. Borax (cristals) 6g. Phenidone 0.1g. Potassium Bromide 0.4g ... Other than main developer stuff like Sodium Sulphite and Hydroquinone or potassium bromide, which I think reduces fogging. ...
Sodium sulphite, anhydrous 100g. Water to make 1 litre.. Solution B;. Sodium sulphite, anhydrous 6g. Sodium carbonate, ...
Sodium Sulphite anhydr. 25g. Metol 1g. Hydroquinone 2g. Sodium Carbonate 3g. Potassium Bromide 0.4g. Water to 1000 ml Very kind ... Sodium Sulphite anhydr. 50g. Hydroquinone 3.5g. Sodium Citrate 10g. Borax (cristals) 6g. Phenidone 0.1g. Potassium Bromide 0.4g ... Other than main developer stuff like Sodium Sulphite and Hydroquinone or potassium bromide, which I think reduces fogging. ...
Sodium sulphite, anhydrous 100g. Water to make 1 litre.. Solution B;. Sodium sulphite, anhydrous 6g. Sodium carbonate, ...
Sodium Sulfite (anhydrous) 100 g. Distilled Water to make 1L. FX15 (Acutol-s) film devloper. Metol 3.5 gms. Sodium Sulphite ... Then add that mixture to your Sodium Sulfite solution. Next add your Hydroxide solution (100 ml) to your Sodium Sulfite/Tylenol ... Sodium Sulfite 100 gm.. Hydroquinone 5 gm.. Borax, granular 2 gm.. Cold water to make 1 liter. D-72 (paper developer). Water, ... Sodium Sulfite (anhydrous) 45 g. Hydroquinone 12 g. Sodium Carbonate (anhydrous) 67.5 g. Potassium Bromide 1.9 g. Cold water to ...
Sodium sulphite, anhydrous 100g. Water to make 1 litre.. Solution B;. Sodium sulphite, anhydrous 6g. Sodium carbonate, ...
Sodium sulphite, anhydrous 100g. Water to make 1 litre.. Solution B;. Sodium sulphite, anhydrous 6g. Sodium carbonate, ...
It take PQ-Borax to the next logical stage as a one-shot developer instead of the usual high sulphite formulas designed to be ... It take PQ-Borax to the next logical stage as a one-shot developer instead of the usual high sulphite formulas designed to be ... Sodium sulphite, anhydrous 65 grams. Sodium metabisulphite 2 grams. Hydroquinone 5 grams. Borax 4 grams. Potassium bromide 1 ...
Sodium Sulfite and Carbonate is cheaper at $000.75 per 250 grams. And even cheaper if you go to swimming pool supply shops. And ... I assume one of them (the big one) has the sodium sulphite and the smaller one the HEAP and glycin. One would have expected the ... The certificate stated a combination of hydroquinone, potassium bromide, sodium sulfite and sodium carbonate ie just some ...
Sodium Sulfite and Carbonate is cheaper at $000.75 per 250 grams. And even cheaper if you go to swimming pool supply shops. And ... I assume one of them (the big one) has the sodium sulphite and the smaller one the HEAP and glycin. One would have expected the ... The certificate stated a combination of hydroquinone, potassium bromide, sodium sulfite and sodium carbonate ie just some ...
Sodium Sulfite and Carbonate is cheaper at $000.75 per 250 grams. And even cheaper if you go to swimming pool supply shops. And ... I assume one of them (the big one) has the sodium sulphite and the smaller one the HEAP and glycin. One would have expected the ... The certificate stated a combination of hydroquinone, potassium bromide, sodium sulfite and sodium carbonate ie just some ...
Sodium Sulfite and Carbonate is cheaper at $000.75 per 250 grams. And even cheaper if you go to swimming pool supply shops. And ... I assume one of them (the big one) has the sodium sulphite and the smaller one the HEAP and glycin. One would have expected the ... The certificate stated a combination of hydroquinone, potassium bromide, sodium sulfite and sodium carbonate ie just some ...
The certificate stated a combination of hydroquinone, potassium bromide, sodium sulfite and sodium carbonate ie just some ...
Sulphite is a mis-spelling of Sulphate, otherwise correct throughout. Disregard the advertisements--there is no need to order ...
As I see, there are two ways that are easy to do without adding additives such as sulfite. 1. Boil the water 5-10 minutes and ...
As I see, there are two ways that are easy to do without adding additives such as sulfite. 1. Boil the water 5-10 minutes and ...
Water 350ml Para-Amin 7.00 gms Sodium Sulfite A 90-100.00 gms Sodium Carbonate 4.00 gms Sodium Hydroixde 10.00 gms Use 1 liter ...
Contains Sulfites. Alcohol content: 14%. Terra Tangra Sakar Mountain Vineyards, 6450 Harmanli, Bulgaria ...
Contains Sulfites. Alcohol content: 14%. Terra Tangra Sakar Mountain Vineyards, 6450…. 0,75L Flasche. inkl.MwSt.zzgl. ...
Complex and structured.contains sulfites Discounts. Number. Unitprice. 1 19,49 €. 25,99 €/Liter ...
Their wine consultants sell wine that includes only grapes and has less than 55 ppm of sulfites. ...
It is a very small fragment of a dried-up sodium sulfite crystal (part of the developer). Its size compared to the window of ... It is a very small fragment of a dried-up sodium sulfite crystal (part of the developer). Its size compared to the window of ...
Developed more than 70 years ago in Sweden precisely for the sulfite paper industry where the Duplexs were used to combat super ...
Sulfer Burning And Sulphite Liquor Prep next: Supplier Of Jaw Crusher In Malaysia ...
Quantofix Sulphite. *Quantofix Tin. *Wator - Water in Butter. *Water Analysis. *Analytical Instruments *Edge Hybrid ...
Quantofix Sulphite. *Quantofix Tin. *Wator - Water in Butter. *Water Analysis. *Analytical Instruments *Edge Hybrid ...
  • Wine, for example, that contains sulfites must list that on the label, notes Liza Gross writing for "Wines and Vines. (
  • Wines that have less than 10 parts per million are not required to carry the "Contains Sulfites" label but they still contain sulfites in some level. (
  • U.S. Law dictates that wine with sulfites higher than 10 ppm must state "contains sulfites" on the label. (
  • If sulfites are added to the wine and the total count of sulfites in the wine is taken above 10 parts per million, it must make the statement, 'Contains Sulfites. (
  • How do I determine if a food product contains sulfites? (
  • Symptoms usually develop within a hour after eating food that contains sulfites. (
  • Wine contains sulfites. (
  • The label must clearly state that the wine contains sulfites. (
  • When in food or drink, sulfites are often lumped together with sulfur dioxide. (
  • They may come in various forms, such as: Sulfur dioxide, which is not a sulfite, but a closely related chemical oxide Potassium bisulfite or potassium metabisulfite Sodium bisulfite, sodium metabisulfite or sodium sulfite Sulfites occur naturally in all wines to some extent. (
  • Bottles of wine that contain over 10 mg/L (ppm) of "sulfites" (or sulfur dioxide) are required to bear "contains sulphites" on the label. (
  • Sulfur dioxide, sodium sulfite, sodium bisulfite, sodium metabisulfite and potassium bisulfite are all considered sulfites, and people with sulfite allergies need to avoid them. (
  • In the wine world, sulfites are commonly found as powder (potassium metabisulfite) and a gas (sulfur dioxide/SO2). (
  • The recall was initiated after it was discovered that the apricots used in the products contain sulfur dioxide as a preservative, and the packaging did not reflect the presence of sulfites. (
  • Also, look at the ingredient list for sulfur dioxide, potassium bisulfite, potassium metabisulfite, sodium bisulfite, sodium metabisulfite or sodium sulfite, all of which indicate the presence of sulfites. (
  • It is therefore still possible that the chemiluminescence reactions with sulfite might have the mechanism described above, leading to emission from excited sulfur dioxide. (
  • and the wine is processed without added sulfites or sulfur dioxide. (
  • Inhalation of sulfur dioxide (SO2) generated in the stomach following ingestion of sulfite-containing foods or beverages, a deficiency in a mitochondrial enzyme, and an IgE-mediated immune response have all been implicated. (
  • Most reactions occur from inhaling sulfur dioxide that is generated from sulfite-containing food or beverage items. (
  • The science behind this is actually rather simple: burning sulfur in the open air creates sulfur dioxide (i.e. sulfites) which is now understood to effectively control vinegar bacteria. (
  • Version 3.0 of the Sulfite Calculator now allows winemakers to enter the wine's alcohol content and temperature, as well as an adjustment factor to compensate for binding, in determining the amount of free sulfur dioxide (SO2) required to protect a wine. (
  • Sodium sulfite is decomposed by even weak acids, giving up sulfur dioxide gas. (
  • When the stomach breaks down sulfites, it releases a sulfur dioxide gas. (
  • Sodium Sulfite, Sodium Bisulfite, Potassium Bisulfite, Sodium Metabisulfite and Potassium Metabisulfite are referred to as sulfiting agents because they release sulfur dioxide under certain conditions. (
  • In was noted that in in vitro assays, an equilbrium would exist between sulfurous acid, sulfur dioxide, bisulfite, sulfite and metabisulfite. (
  • Sodium Sulfite, Potassium Sulfite, and Ammonium Sulfite are listed as inorganic sulphites and hydrogen sulphites in Annex VI, Part I (preservatives which cosmetic products may contain) of the Cosmetics Regulation of the European Union and may be used at a maximum authorized concentration of 0.2%, expressed as free sulfur dioxide. (
  • The Joint FAO/WHO Expert Committee on Food Additives has established a group Acceptable Daily Intake of 0.7 mg/kg body weight for sulfur dioxide and sulfites expressed as sulfur dioxide, which includes Sodium Sulfite, Sodium Metabisulfite and Potassium Metabisulfite. (
  • However, the addition of sulfur dioxide to wines is a practice used to reduce oxidization and give wine longer shelf lives, but, these added sulfites have come under scrutiny for a connection to allergies, headaches, and other health concerns. (
  • Sulfites used in food processing (but not as a preservative) are required to be listed if they are not incidental additives (21 CFR 101.100(a)(3)), and if there are more than 10 ppm in the finished product (21 CFR 101.100(a)(4)) Products likely to contain sulfites at less than 10 ppm (fruits and alcoholic beverages) do not require ingredients labels, and the presence of sulfites usually is undisclosed. (
  • The recall was initiated after routine sampling by Florida Department of Agriculture and Consumer Services (FDACS) and subsequent analysis revealed the presence of sulfites in Huangfushanzen Huang Mountain Tea Mushroom (黄府山珍茶花菇) Dried Mushrooms which were not declared on the label at a level that could cause a life-threatening reaction in sulfite-sensitive individuals. (
  • The recall was initiated after routine sampling by New York State Department of Agriculture and Markets Food Inspectors and Subsequent analysis of the product by Food Laboratory personnel revealed the presence of sulfites in packages of "Golden Flower Brand Dried Lily Bulb" which did not declare sulfites on the label. (
  • In most instances, the presence of sulfites is not noticeable. (
  • I am looking for sulfite free wines. (
  • There are no sulfite free wines. (
  • There are scant few wines to which no sulfites are added, but fermentaion of wine, cheese, yogurt and bread naturally produces sulfites, as does your body every day. (
  • Why do you want sulfite free wines? (
  • Organic wines are not necessarily sulfite-free, but generally have lower amounts and regulations stipulate lower maximum sulfite contents for these wines. (
  • In general, white wines contain more sulfites than red wines and sweeter wines contain more sulfites than drier ones. (
  • In the United States, wines bottled after mid-1987 must have a label stating that they contain sulfites if they contain more than 10 parts per million (ppm). (
  • therefore, even if no sulfites are added during the early stages of production, there will still be some sulfites present in all wines. (
  • Yet the next time they shopped for wine, they'd ask for the "sulfite-free wines," and I had to adopt several meditative breathing practices to avoid barraging them with Well Actuallys. (
  • All wines contain at least some small amount of sulfites. (
  • Even wines that have not had any sulfites added during the winemaking process contain some amount of sulfites. (
  • Regulations in the United States require that domestic and imported wines carry warning labels if they have sulfites in excess of 10 parts per million. (
  • Sulfites are not a black and white issue and I am certainly not suggesting that all wines should be made with no added sulfites. (
  • What I am enthusiastic about is breaking through the industry myth that wines made with minimal sulfites are of a lesser quality or are only for short term drinking. (
  • Because sulfites form naturally during fermentation, nearly all wines contain low levels of sulfites even when the winemaker has not supplemented or sprayed the fields. (
  • Wines that are labeled simply "organic" are 100% organic with no sulfites. (
  • Wines labeled "made with organically grown grapes" are made with organically grown grapes but contain more sulfites than those that occur naturally. (
  • Specifically, sulfites are used on fruits and vegetable to prevent unpleasant browning, on shrimp and lobster to prevent melanosis, or "black spot", in wines to discourage bacterial growth, in dough as a conditioner, and to bleach certain food starches and cherries. (
  • Do Certified Organic Wines Contain Sulfites? (
  • Certified organic wines, can have naturally occurring sulfites (all wines contain naturally occurring sulfites as a byproduct of the fermentation process), but the total sulfite level must be less than 20 parts per million. (
  • So for the for those who are super-sensitive to sulfites (asthma sufferers, for example), certified organic wines are the way to go. (
  • If you want to buy organic wines that don't contain added sulfites, my top tip is to read the label. (
  • Are there any thoughts about what types of wines might be lower in sulfites? (
  • But, OP could be one of those 1-in-100,000, so he/she should know there are sulfites in all wines. (
  • A few sulfite-free wines have been produced by mutated yeast, but the wine has the lifespan of a mayfly. (
  • Friend & Farmer wines are Demeter and vegan certified with only naturally occurring sulfites. (
  • Wines that are a good value and express the true character of each grape varietal, with no chemicals, no sulfites. (
  • Please know that we are taking good care of our wines and making sure all our customers will be able to continue to enjoy an amazing bottle of Glyphosate and GMO Free, Organic Wine, with no sulfites added. (
  • In recent years, significant efforts to produce healthier wines has led to the replacement or reduction of the addition of sulfites, using alternative substances or techniques. (
  • Our wines still use a certain amount of sulfites for stability but in such dosage and balance that they are perfectly accepted. (
  • These properties result from the dissipation of active SO 2 to produce "free SO 2 ," and from some free SO 2 combining with aldehyde compounds (responsible for oxidation in wines) to form "bound SO 2 " when sulfite is added to wine. (
  • In winemaking, "sulfite" is used as a generic term to refer to either the white (sulfurous acid salt) powder used in preparing a sulfite solution, to the sulfite solution itself, or to free SO 2 in musts and wines. (
  • While certain sensitive groups and those with sulfite allergies do need to avoid wines with sulfites, these substances are not harmful to most people. (
  • You can expect to find higher concentrations of sulfites in white wine than in red wine, and desert wines often have the highest sulfite levels. (
  • Wines relying only on natural sulfites as a preservative typically have a shorter shelf life. (
  • As a rule, sulfite levels are higher in white wines and sweet wines. (
  • In recent years, winemakers have begun to market organic wines and other wines without sulfites. (
  • Since the lack of sulfites can mean a reduced shelf life, you may have good luck finding sulfite-free wines from local vineyards. (
  • Progressive winemakers have taken this under advisement, and now offer a number of sulfite-free wines. (
  • Sulfites are a kind of food preservative that can cause breathing difficulties in some people with asthma. (
  • Evidence from 17O NMR spectroscopic data suggests that protonation of the sulfite ion gives a mixture of isomers: Sulfites are used as a food preservative or enhancer. (
  • Sodium sulfite is an inorganic sulfur-based salt used as a preservative. (
  • Sulfites act as a preservative in a wide variety of common foods, from raisins to shrimp. (
  • Sulfites, when used as a preservative, are inorganic salts that help extend the shelf life of certain foods. (
  • Sulfites are inorganic salts that have antioxidant and preservative properties. (
  • And sulfites are considered by the USDA a preservative. (
  • Sodium sulfite is used as a preservative in foods and as an antioxidant in alcoholic beverages. (
  • Sulfite is the most effective and widely used preservative in winemaking. (
  • Sulfites occur in wine as a natural part of the fermentation process, and can also be added as a preservative. (
  • Sulfites are used as a preservative in a variety of applications, especially those involving dried fruit and potatoes. (
  • People who have a severe sensitivity to sulfites run the risk of serious or life-threatening reaction if they consume these products. (
  • A small number of people have a sensitivity to sulfites, and the reactions to the sulfites can cause a range of symptoms. (
  • Sensitivity to sulfites can develop at any time during a person's lifespan, with some initial reactions not showing up until a person has reached their forties or fifties. (
  • What types of health problems may arise from sensitivity to sulfites? (
  • Potassium sulfite (K 2 SO 3 ) is a chemical compound which is the salt of potassium cation and sulfite anion. (
  • Potassium sulfite is a chemical compound . (
  • In addition, Sodium Sulfite, Potassium Sulfite, Sodium Bisulfite and Sodium Metabisulfite function as antioxidants preventing or slowing deterioration of cosmetics and personal care products caused by chemical reactions with oxygen. (
  • As used in cosmetics and personal care products, the CIR Expert Panel concluded that Sodium Sulfite, Potassium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Sodium Metabisulfite and Potassium Metabisulfte were safe. (
  • Sodium Sulfite, Potassium Sulfite, Sodium Bisulfite and Sodium Metabisulfite also function as antioxidants. (
  • Barium sulfite, also known as barium sulfonate or barium(2+) sulfite, is the barium salt of the sulfurous acid H2SO3. (
  • Ammonium sulfite is an ammonium salt of sulfurous acid and a byproduct of the flue gas desulfuration process by ammonia. (
  • In these people sulfites are considered an asthma trigger because they bring on asthma symptoms such as cough, wheezing, or shortness of breath. (
  • sulfites cause serious symptoms in about 5% of people with asthma. (
  • While sulfites are indeed harmless to the great majority, they can cause potentially life-threatening reactions in some people with asthma and others who are sensitive to the compounds. (
  • Because of this, 5 to 10 percent of people die following sulfite exposure if they also suffer from asthma. (
  • The incidence of sulfite sensitivity among asthma sufferers is estimated at 3.9 percent , and very rare among the general populace. (
  • These symptoms occur in people who have asthma, and it's far less common for those without asthma to have a sulfite sensitivity. (
  • People deficient in sulfite oxidase, the enzyme necessary to break down sulfites, can experience symptoms without having asthma. (
  • Although literature lists a range of figures as to what percent of the population is affected, the Food and Drug Administration (FDA) estimates that one out of a hundred people is sulfite-sensitive, and of that group 5% have asthma. (
  • Sulfites have been implicated as a cause of asthma symptoms that may range from mild wheezing to potentially life-threatening asthmatic reaction. (
  • Sulfites are added to many medications, including some of the medications given to treat asthma and allergic reactions. (
  • Estimates of the number of people who have sulfite-sensitive asthma vary. (
  • People with sulfite-sensitive asthma develop asthma symptoms by eating and drinking foods and beverages that contain sulfites. (
  • Your doctor may suspect that you are sensitive to sulfites based on your medical history and aspects of your asthma. (
  • The challenge is done in a step-by-step fashion, and small doses of sulfite are used, so the asthma reaction that occurs in this challenge is usually mild. (
  • Many consumers of the standard American diet experience severe allergy symptoms, including headaches, asthma, and even seizures from sulfites. (
  • Most people with sulfite sensitivity have asthma. (
  • recommends that people with sulfite allergies avoid dried fruits except for prunes and dark raisins, non-frozen bottled lime and lemon juice, wine, molasses, sauerkraut, and grape juices. (
  • Although an epinephrine syringe contains a small amount of sulfite, there are no reports of adverse reactions to epinephrine in those with sulfite allergies . (
  • The US Food and Drug Administration has recognized that approximately 1 in 100 people suffer from sulfite allergies. (
  • Sulfites can cause allergies in some people, though. (
  • With such a history of use, sulfites have been generally regarded as safe (GRAS) by the FDA, however it is suspected that a small percentage of the population is sensitive to sulfites. (
  • If you are asthmatic, your chances of being sensitive to sulfites are between 1 in 20 and 1 in 100. (
  • If you suspect you may be sensitive to sulfites, you should be seen by a board-certified allergy/immunology physician. (
  • Because some people are sensitive to sulfites, food containing these ingredients must be clearly labeled. (
  • E numbers for sulfites as food additives are: Allergic reactions to sulfites appear to be very rare in the general population, but more common in hyperallergic individuals. (
  • What are some sensitivity reactions to sulfites? (
  • Some sensitivity reactions to sulfites include itching and hives, vomiting, diarrhea, and upset stomach, as listed by WebMD. (
  • Adverse reactions to sulfites in nonasthmatics are extremely rare. (
  • Because of cases of severe reactions to sulfites, a ban by the FDA went into effect in August 1986 to prohibit the use of sulfites in fresh fruits and vegetables. (
  • Although reactions to sulfites were recognized initially with salad bars in restaurants, this has not been a source for sulfite exposure for more than two decades. (
  • Sulfites are counted among the top nine food allergens, but a reaction to sulfite is not a true allergy. (
  • Asthmatics and possibly people with salicylate sensitivity (or aspirin sensitivity) are at an elevated risk for reaction to sulfites. (
  • Silver sulfite can be prepared by dissolving silver nitrate with the stoichiometric quantity of sodium sulfite solution, yielding a precipitation of silver sulfite by the following reaction: 2 AgNO3 + Na2SO3 ⇌ Ag2SO3 + 2 NaNO3 After precipitation then filtering silver sulfite, washing it using well-boiled water, and drying it in vacuum. (
  • While a sulfite reaction is not a true allergy , the symptoms are similar: wheezing, shortness of breath, swelling, and/or a rash. (
  • So although sulfites create a reaction for a small number of people, they're not specifically a cause of headaches. (
  • If you have a strong allergic reaction to sulfites you may already know some ways to avoid the substances. (
  • Asthmatics that are steroid-dependent or have a great degree of airway hyperreactivity may be at an increased risk of having a reaction to a sulfite containing food (Lester 1995). (
  • Sensitive individuals vary in their degree of intolerance towards sulfites, with each having a specific threshold of exposure needed to elicit a reaction (Knodel 1997). (
  • Sulfites undergo an addition reaction with carbonyl compounds and addition of cyclohexanone to protect sulfite solutions against atmospheric oxidation led to the observation that this, at appropriate concentrations, enhanced the oxidative chemiluminescence. (
  • There is evidence that the chemiluminescence of the permanganate-sulfite reaction has the same emitter as any other permanganate oxidation and the red emission from this persists in the presence of fluorophores as a major contributor to total light output. (
  • [2] The cerium(IV)-sulfite reaction does not have any effect on the chemiluminescence spectrum in the presence of fluorophores. (
  • There have been persistent reports of emission from the permanganate-sulfite reaction at lower wavelength than can satisfactorily be ascribed to manganese(II) phosphorescence - the usual mechanism - but these can be explained at least partly by the use of spectroscopic data that has not been corrected for the variation in sensitivity of the detector at different wavelengths. (
  • Epinephrine can be life-saving in someone who has a severe allergic reaction to sulfites. (
  • Asthmatics who are steroid-dependent or who have a higher degree of airway hyperreactivity may be at greater risk of experiencing a reaction to sulfite-containing foods. (
  • Even within this limited population, sulfite sensitivity reactions vary widely, ranging from no reaction to severe. (
  • It is also a rare cause of anaphylaxis (generalized allergic reaction) in people who have become allergic to sulfites. (
  • The results showed that the yield of soluble Mn(III) produced from the redox reaction of MnO 2 and oxalic acid was dependent linearly on the dosage of MnO 2 and caused the decomposition of methyl parathion up to 50.1% in Mn(III)-sulfite system after 30 minutes. (
  • The fitted pseudo-first-order reaction constants of methyl parathion degradation increased with the increasing of the amount of produced Mn(III) but was not effected linearly by the addition of sulfite. (
  • Sulfite sensitivity is an abnormal reaction to these compounds. (
  • Most symptoms are mild and can vary based on your body's reaction to sulfite ingestion. (
  • Some may also have an allergic reaction to sulfites. (
  • Amity Winery in Oregon produces an organic, SULFITE-FREE wine called Eco-Wine. (
  • There's no better way to stir up a heated argument with serious wine lovers than introduce natural wine, organic wine, or sulfites into the discussion. (
  • There are four wineries in California that take the additional step of processing their wine without added sulfites and are certified organic. (
  • I am trying to obtain as much information as I can in reference to organic wine and sulfites. (
  • I would like to know if organic wine has any of it's own natural sulfites. (
  • When you buy a bottle of organic wine , which legally cannot contain added sulfites, there may still be some SO2 present in the beverage. (
  • This is an important distinction, since winemakers cannot use the "organic wine" label if they add sulfites. (
  • You can now find organic and sulfite free options at many wine shops or natural retailers like Whole Foods-who sent us several options to try. (
  • Lab results later confirmed that the unsulfured lot has no detectable sulfites while the sulfured lot has approximately 20ppm. (
  • It is labelled as "no detectable sulfites" so you should be good with it. (
  • Headache caused by allergy not to sulfites, but to yeasts,etc in the wine. (
  • Some people have positive skin allergy tests to sulfites indicating true (IgE-mediated) allergy. (
  • This presents a significant danger because the already compromised airways in an asthmatic person can close up completely following exposure to sulfites if the individual also has a sulfite allergy. (
  • My mum has a pretty bad sulphite allergy so we've spent a lot of time hunting for drinkable wine for her, there are an increasing number of producers who are able to give you what you need. (
  • If you have a confirmed sulfite allergy, consider seeing an allergy specialist. (
  • Sulfites also occur naturally as part of the fermentation process in foods such as beer and wine. (
  • Sulfites occur naturally in some foods and beverages as a result of fermentation, such as in beer and wine. (
  • Sulfites occur as a consequence of fermentation and also occur naturally in a number of foods and beverages. (
  • The sulfite ion is the conjugate base of bisulfite. (
  • When sulfite, for example, in the potassium metabisulfite salt form, is added to wine, it dissociates into mainly bisulfite ions. (
  • A variety of foods contain sulfites as an additive, primarily an anti-oxidant, to prevent discoloration and also a sterilizing agent - these are recognized on the label as sulphur dioxide, sulfite, bisulfite and metabisulfite. (
  • In cosmetic and personal care products, even with the addition of bisulfite, the sulfite form would predominate. (
  • Sodium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Potassium Bisulfite, Ammonium Bisulfite, Sodium Metabisulfite and Potassium Metabisulfite are all used as reducing agents in cosmetics and personal care products. (
  • Sulfites or sulphites are compounds that contain the sulfite ion (or the sulfate(IV) ion, from its correct systematic name), SO2− 3. (
  • Sodium sulfite reacts with the chlorine in water, present as hypochlorous acid (HOCl), to produce the salts hydrochloride (HCl) and sodium sulfate (Na2SO4). (
  • Sulfate and Sulfite are frequently added to food and medications, including vitamins and over the counter drugs in order to preserve the item or enhance the texture. (
  • Millions of people are sensitive and intolerant of both chemicals and because the FDA does NOT require food and drug manufacturers to label their items as containing sulfate/sulfite if the chemical was added to the ingredient as purchased/ or if the item comes from another country MILLIONS ARE SUFFERING unnecessarily. (
  • Thus, those of us allergic to the ingredients suffer because we cannot tell if there is sulfate/sulfite in the product or not. (
  • Since the FDA dows acknowledge that sulfate/sulfite are known carcinigens, we are all in danger. (
  • Join me in demanding that the FDA ban the use of sulfate/sulfite for all products sold in the US regardless of their origin. (
  • Because sulfate/sulfite are poisons that we're just being able to identify. (
  • Ammonium sulfite can be oxidized into ammonium sulfate, which can be used as a fertilizer. (
  • p-2 A process for the preparation of anhydrous magnesium sulfate or magnesium … ----- EPA-600/7-77-109 September 1977 PRECIPITATION CHEMISTRY MAGNESIUM SULFITE HYDRATES MAGNESIUM OXIDE SCRUBBING by Philip S. Lowell, Frank B. Meserole, and Terry B. Parsons Radian Corporation 8500 Shoal Creek Boulevard Austin, Texas 78766 Contract No. If you solve it based on balancing the charge, you can solve it. (
  • sufate oxidase, would convert all sulfite to sulfate. (
  • Animals were left untreated or were treated with 10 μ l of 0.1 M, of 0.01 M sodium sulfite, or of 0.1 M sodium sulfate, intraperitoneally once/day, until postoperative day (POD) 100. (
  • If you think you are allergic to wine because of sulfites you are likely mistaken, and when we know your reason we will enlighten you instead of scare you with so-called facts. (
  • I don't know how Amity fermented the grapes for their SULFITE-FREE wine, but I assume they mean NO SULFITES ADDED. (
  • I don't know why anyone would want to drink sulfite free wine. (
  • If people say they are allergic to sulfites and cannot drink wine because they get a headache, then they are misinformed. (
  • Are Sulfites in Wine Bad for You? (
  • Now that sulfites are included on every wine label, everyone seems a little concerned. (
  • Sulfites are commonly introduced to arrest fermentation at a desired time, and may also be added to wine as preservatives to prevent spoilage and oxidation at several stages of the winemaking. (
  • Regarding sulfites: While it is possible that sulfites can cause nasal flushing, itching, nasal congestion and even wheezing, there are other foods such as shrimp, prepared potatoes, sauerkraut, dried fruit, various prepared dips, beer and other beverages which contain greater concentration of sulfites than wine. (
  • one ppm is equivalent to less than 1 mg. of sulfites in a full 750ml bottle of wine. (
  • Is it the sulfites in wine or the alcohol - or both - that gives you a headache the day after overindulging? (
  • I'd like to focus this discussion on sulfites, the most commonly implicated culprit, though I'll touch on other components of wine that have been studied as possible headache triggers. (
  • By the time I started encountering the Sulfite Fear on a regular basis, I'd already worked for two years in wine cellars. (
  • When you see "no sulfites detected" on a wine label, it means no added sulfites, and the wine will probably have a much shorter shelf life than the average bottle. (
  • That said, even mainstream wine doesn't have a lot of sulfite in it compared to other things we encounter regularly. (
  • However, if you are diagnosed with a sulfite sensitivity, keep in mind that white wine contains a much higher level of added sulfites than red (if you smell a glass of recently bottled white wine, you might get a little prickle in your nose from lingering sulfites, since there's typically a final addition at bottling time), and preserved foods an even higher amount. (
  • Humans produce about 1,000 milligrams of sulfites each day, but sulfites are also used as a food presevative for several foods, including wine and dried fruit. (
  • Can Sulfites in Wine Cause Joint Pain? (
  • Sulfites have been used in wine-making for centuries. (
  • Sulfites continue to be used in potatoes, shrimp, beer and wine, and are also used in the pharmaceutical industry. (
  • Today, when a new wine is put into a recently sulfured barrel it can pick up 20 parts per million (ppm) of sulfites and this not only staves off vinegar but also helps to preserve freshness and color. (
  • In my quest of crafting wine I have found that sulfites are helpful, but not always necessarily wonderful. (
  • Sure, one must protect good wine from turning into vinegar but in general I'm of the opinion that sulfites damage a wine's overall quality if used in anything but tiny quantities. (
  • To illustrate and further understand exactly how sulfites affect the aroma and flavor of wine we conducted a little experiment with our 2011 Syrah from John Sebastiano Vineyard - a magical piece of land straddling the eastern boundary of the cool Santa Rita Hills appellation of Santa Barbara County. (
  • in August, 2012 we moved the sulfite-free wine from oak barrels into a stainless-steel bottling tank. (
  • After bottling half of the wine, we stopped to add some sulfites before bottling the rest. (
  • Winos: No Sulfites in Italian Wine? (
  • The Sulfite Calculator is a simple yet very useful tool to quickly calculate the amount of sulfite needed to adequately protect a wine. (
  • It calculates the amount of sulfite based on the difference between the current and desired free SO2 levels for any given volume of wine. (
  • It can be used to quickly determine the amount of sulfite to be added when wine parameters, for example, pH, are not needed in the calculation. (
  • When a value for pH is entered, the Sulfite Calculator uses this value along with the type of wine, alcohol content, temperature and desired molecular SO2 to calculate a recommended free SO2 level. (
  • Since microorganisms thrive at higher pH, greater amounts of sulfite are needed to ensure that there is sufficient molecular SO2 to protect the wine against microbial spoilage. (
  • When adding sulfite to wine, it is recommended to make larger, infrequent additions as opposed to smaller, frequent additions. (
  • In the above example of the tannic red wine requiring 60 mg/L of free SO2, the full dose of sulfite required to achieve 60 mg/L of free SO2 should be added, as opposed to, for example, adding 30 mg/L now and 30 mg/L in one month. (
  • I have a problem with sulfites in large quantities, and it's been russian roulette with drinking wine. (
  • Any wine claiming to be sulfite-free is using "creative math" to do so. (
  • More sulfites are usually added to wine, because otherwise it has the shelf life of a pear. (
  • I think the biggest issue I've found is that all the sulphite free wine I've had tastes different to "normal" wine. (
  • Homemade wine usually has MORE sulfites. (
  • A pioneer, he was the first to produce organically grown sulfite-free wine. (
  • Is sulfite an antiatherogenic compound in wine? (
  • age range, 28-37 years) before and after they drank a glass of wine (200 mL of a 1997 Bordeaux red wine containing ~320 mg/L sodium sulfite). (
  • Plasma sulfite concentrations were 6.4-10.2 [micro]mol/L at this time point, which were similar to those seen in the volunteers who consumed a glass of wine. (
  • We showed here an increase in plasma sulfite, after the consumption of a glass of wine, to a concentration that may account for increased plasma antioxidant activity. (
  • It would be great to have an occasional glass of wine but I am afraid to attempt it until I can get a better definition about the sulfites. (
  • New research finds that those who suffer from headaches would pay for less sulfites in their wine. (
  • When I first started making wine at home, I understood the role and importance of sulfite in preserving wine, but I never could get the same answer twice to my queries on how much sulfite I should add. (
  • This will help us understand how sulfite protects wine and how much "free SO2" we are introducing into our wine. (
  • If you're concerned about sulfites in wine, you aren't alone. (
  • In addition to preserving wine, sulfites can be used to control the timing of fermentation. (
  • If you have one of these conditions, you should avoid wine with high sulfite levels. (
  • This is the patented wine purifier that removes unwanted sulfite and sediment from a vintage for a more enjoyable glass of wine. (
  • Made from food grade super porous polymer, it filters out sulfites while retaining the natural aroma and flavor, allowing you to enjoy wine without sulfite-related side-effects such as headaches, hives, or stomach pain. (
  • Sulfites occur in all wine-as a natural by-product when yeast metabolizes during fermentation. (
  • Along with a growing market demand for wine made from organically grown grapes, the sulfite-free wine category is also booming. (
  • Secondly, sulfites do NOT cause headaches, as Foodie alluded to. (
  • Clarification: rereading my note makes it seem that I am saying Foodie said sulfites cause headaches - not what I meant, just the opposite. (
  • And the only headaches I've ever gotten from sulfites were due to frustration about their bad rap. (
  • Many people claim that sulfites cause them to get headaches, but this hasn't been supported by credible research, notes Andrew L. Waterhouse, writing for the University of California Davis. (
  • The reason being, these sulfites can cause severe allergic reactions and/or severe headaches in some individuals. (
  • I blame the "headaches" most people experience on the alcohol, not the sulfites. (
  • The molecular weight of anhydrous sodium sulfite is 126 whereas that of monohydrate is 126+the water 18 = 144, so you need 144/126 = 1.14 times the amount of monohydrate to get the equal amount of the chemical itself. (
  • In addition to the anhydrous sodium sulfite the other available form is the crystalline, containing seven water molecules. (
  • Isolated sulfite oxidase deficiency (ISOD) is a disorder of the nervous system, with a severe "classic" form that starts in the newborn period and a milder, late-onset form that begins later in infancy or early childhood. (
  • Bindu PS, Christopher R, Mahadevan A, Bharath RD. Clinical and imaging observations in isolated sulfite oxidase deficiency. (
  • Laboratory findings that are typically seen in molybdenum cofactor deficiency but not isolated sulfite oxidase deficiency include low or low-normal levels of plasma uric acid level (within reference range in individuals with isolated sulfite oxidase deficiency) and elevated levels of urinary xanthine and hypoxanthine (within reference range in individuals with sulfite oxidase deficiency). (
  • Microarray analysis unmasked paternal uniparental disomy of chromosome 12 in a patient with isolated sulfite oxidase deficiency. (
  • 1. Sodium sulfite is an inorganic salt with the chemical formula Na 2 SO 3. (
  • This multi-purpose, bright white sulphite sheet has excellent tooth and surface sizing, ideal for artists at all levels, from beginning to advanced. (
  • Although shrimp are sometimes treated with sulfites on fishing vessels, the chemical may not appear on the label. (
  • Alert® for Sulfites is a very simple and rapid semi-quantitative test for detecting sulfite residues in shrimp. (
  • Occupational exposure to sulfites has been reported to cause persistent skin symptoms. (
  • According to Food and Drug Administration (FDA) estimates, about 1 person out of every 100 has allergic symptoms after exposure to sulfites, chemical additives widely used in the food industry. (
  • Although once freely allowed under the FDA category of "generally regarded as safe" (GRAS), sulfite use has been more closely regulated in the past couple of decades after being linked to numerous health problems, including allergic symptoms ranging in severity from hives and difficulty breathing to fatal anaphylactic shock . (
  • Current methods cannot detect sulfite concentrations below 10 parts per million (ppm) in food, although many experts believe that a sulfite-sensitive person may experience symptoms at even lower concentrations. (
  • If you suspect that exposure to sulfites has triggered hives, chest tightness, difficulty breathing, or other symptoms in your child, call your pediatrician to determine whether a sensitivity is present. (
  • Symptoms of a sulfite sensitivity generally occur within 15 to 30 minutes after consuming sulfites. (
  • The manifestations of sulfite sensitivity include a large array of dermatological, pulmonary, gastrointestinal, and cardiovascular symptoms. (
  • Symptoms of sulfite intolerance can occur within 5 minutes following parenteral exposure and within 15-30 minutes following oral exposure. (
  • Symptoms can be reduced or eliminated by avoiding foods or drinks that contain sulfites. (
  • As a result, sulfites and other compounds left over from the partial breakdown process abnormally accumulate in the body. (
  • Researchers suggest that the nervous system is especially sensitive to this abnormal accumulation, and excessive levels of sulfite compounds that are toxic to the brain are thought to result in the brain damage that occurs in ISOD. (
  • Ethylene Sulfite is one of numerous organo-metallic compounds sold by American Elements under the trade name AE Organo-Metallics™ for uses requiring non-aqueous solubility such as recent solar energy and water treatment applications. (
  • Sulfites are compounds that are used to make foods and beverages last longer. (
  • The calculated recommended free SO2 value can then be entered as the new desired SO2 level to calculate the amount of sulfite to be added. (
  • The diagnosis of sulfite sensitivity can be confirmed by a 'challenge. (
  • However, in the acute phase, a diagnosis of sulfite oxidase deficiency is generally based on the presence or absence of physical findings and characteristic metabolites. (
  • citation needed] In 1986, the Food and Drug Administration in the United States banned the addition of sulfites to all fresh fruit and vegetables that are eaten raw. (
  • This development is expected to attract further industrial attention, continuing the race to partially or totally replace the external addition of sulfites. (
  • The consumption of 10 milligrams of sulfites per serving has been reported to elicit severe reactions in some asthmatics. (
  • Sulfites extend the wine's shelf life and reduce the degradation of its flavors. (
  • All warehoused products that were manufactured after February 23, 2018 will be reconditioned to declare sulfites. (
  • Sulfites may not be used on fruits and vegetables intended to be eaten raw, such as in supermarket produce departments or restaurant salad bars. (
  • For example, Mexico, China and other countries that grow our vegetables/spices and fruits in our winter months spray the produce with sulfite to keep it looking fresher than it is. (
  • Prenatal diagnosis has been achieved by measurement of sulfite oxidase activity in chorionic villi or by DNA analysis in families in whom the mutation is known in the index case. (
  • There are many breakfast cereals labeled gluten free, including oat cereals, but you have to read the ingredients carefully to check on sulfites. (
  • In 1986, the U.S. Food and Drug Administration banned the use of sulfites as preservatives on foods intended to be eaten fresh (such as salad ingredients). (
  • As of 2015, no one knows why sulfites cause adverse reactions in certain people, according to (
  • This is a good read for those who are adverse to sulfites. (
  • Product labels must list sulfites in concentrations of 10 ppm or higher, or any sulfites that have been used in processing, regardless of the concentration. (
  • Sodium sulfite was added at concentrations of 10 and 100 [micro]mol/L to the samples before incubation with AAPH. (
  • A small but significant percentage of people who are asthmatic are also allergic to sulfites, according to WebMD. (
  • WASHINGTON (FNS) -- U.S. tuna fish processors have warned consumers that some of their canned products may contain sulfites, chemicals that can trigger asthmatic attacks in certain people.ssors Association and the U.S. Tuna Foundation said domestic fish processors do not use sulfites. (
  • If you are not asthmatic, sulfite sensitivity would be very unusual. (
  • Based on the described read-across methodology information from sodium sulfite (CAS 7757-83-7), sodium metabisulfite (CAS 7681 -57 -4) and potassium metabisulfite (CAS 16731 -55 -8) were used to determine acute toxicity values (oral, dermal and inhalative) for ammonium sulfite. (
  • Potassium metabisulfite (KMS) is the most common and preferred sulfite salt used for sulfite additions. (
  • Sulfite is available as two common powders: potassium metabisulfite or sodium metabisulfite. (
  • CIR Safety Review: Sodium Sulfite, Sodium Metabisulfite and Potassium Metabisulfite were negative in mutagenicity studies. (

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