• The principal phytochemicals that exhibit antibacterial activity are oil-soluble organosulfur compounds that include allicin, ajoenes, and allyl sulfides. (frontiersin.org)
  • The δ C -13 and δS-34 of coexisting carbonates and sulfides can be used to determine the pH and oxygen fugacity of the ore-bearing fluid during ore formation. (wikidoc.org)
  • The sulfhydryl group is acidic enough to react with hydroxide ions to form thiolate salts. (mbdanceapparel.com)
  • The keratin protein is a helicoidal group of cysteine-containing protein complexes with primary, secondary, and tertiary structures held together by peptide bonds, disulfide bonds, and hydroxide bonds. (naturalmedicinejournal.com)
  • Thiol, also called mercaptan, any of a class of organic chemical compounds similar to the alcohols and phenols but containing a sulfur atom in place of the oxygen atom. (mbdanceapparel.com)
  • In organic chemistry, a thiol is a compound that contains the -SH functional group, which is the sulfur analog of a hydroxyl or alcohol group. (mbdanceapparel.com)
  • A thiol (/ˈθaɪɒl/) or thiol derivative is any organosulfur compound of the form R−SH, where R represents an alkyl or other organic substituent. (mbdanceapparel.com)
  • A thioester forms when a sulfhydryl (whose general form is written as an organic group, R, bonded with sulfur and hydrogen, hence R-SH) joins with a carboxylic acid (R'-COOH). (chemeurope.com)
  • In chemistry, a Sulfur Compound is a chalcogen compound , that may be organic compounds ( such as organosulfur compounds ) or inorganic compounds, that contain as an integral part of the molecule a sulfur atom (S) . (wellnessadvocate.com)
  • Organic compounds containing the carboxy group (-COOH). (lookformedical.com)
  • Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. (lookformedical.com)
  • Organic compounds containing a carbonyl group in the form -CHO. (lookformedical.com)
  • The reactive organosulfur compounds form disulfide bonds with free sulfhydryl groups of enzymes and compromise the integrity of the bacterial membrane. (frontiersin.org)
  • 6 Keratin is especially rich in cysteine, which is a sulfur-containing amino acid capable of forming disulfide bonds between molecules, thus adding strength and elasticity to the entire structure (Figure 1). (naturalmedicinejournal.com)
  • The cuticle comprises 8-10 layers of flat, overlapping cells stabilized and held in place by disulfide bonds. (naturalmedicinejournal.com)
  • The cortex is in the center of each hair fiber and consists of long, tightly packed keratin spindles stabilized by disulfide bonds. (naturalmedicinejournal.com)
  • The disulfide bonds impart covalent bonding between adjacent protein chains and confer rigidity to the hair structure. (naturalmedicinejournal.com)
  • 7 When sulfur is readily available, keratin is made from strong disulfide bonds. (naturalmedicinejournal.com)
  • An exception is the oxygen atom in the hydroxyl group (-OH) bonded to the aromatic ring is replaced by a sulfur atom. (wikipedia.org)
  • All have a sulfhydryl group (-SH) covalently bonded to an aromatic ring. (wikipedia.org)
  • A group of compounds with three aromatic rings joined in linear arrangement. (lookformedical.com)
  • In chemistry thioesters are compounds with the functional group R-S-CO-R'. In biochemistry, the best-known thioesters are derivatives of coenzyme A, e.g., acetyl-CoA. (mbdanceapparel.com)
  • R. J. Cremlyn "An Introduction to Organosulfur Chemistry" John Wiley and Sons: Chichester (1996). (chemeurope.com)
  • The prefix thio- implies a sulfur-containing compound and when used before a root word name for a compound which would normally contain an oxygen atom, in the case of 'thiol' that the alcohol oxygen atom is replaced by a sulfur atom. (wikipedia.org)
  • Thiophenols, especially in the presence of base are easily oxidized to diphenyl disulfide: 4 C6H5SH + O2 → 2 C6H5S-SC6H5 + 2 H2O The disulfide can be reduced back the thiol using sodium borohydride followed by acidification. (wikipedia.org)
  • A thiol is a compound which contains an SH functional group. (mbdanceapparel.com)
  • A sulfhydryl group (also called "thiol group") consists of a sulfur atom with two lone pairs, bonded to hydrogen. (mbdanceapparel.com)
  • The -SH functional group itself is referred to as either a thiol group or a sulfhydryl group, or a sulfanyl group. (mbdanceapparel.com)
  • Thioesters are compounds resulting from the bonding of sulfur with an acyl group with the general formula R-S-CO-R' . They are the product of esterification between a carboxylic acid and a thiol (as opposed to an alcohol in regular esters ). (chemeurope.com)
  • The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (lookformedical.com)
  • The disulfide linkages contribute to the tertiary and quaternary structures of proteins. (mbdanceapparel.com)
  • The sulfhydryl group is ubiquitous in our body and mostly found in the oxidized form as disulfide linkages. (mbdanceapparel.com)
  • The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound. (lookformedical.com)
  • Such compounds are typically prepared by the reaction of the thioacyl chloride with an alcohol, but they can also be made by the reaction of Lawesson's reagent with esters. (chemeurope.com)
  • Methylsulfonylmethane (MSM), an organosulfur compound, is gaining importance as an antioxidant and anti-inflammatory, as well as a source of sulfur for the body. (naturalmedicinejournal.com)
  • Thiophenols also describes a class of compounds formally derived from thiophenol itself. (wikipedia.org)
  • Thiophenol can be manufactured from chlorobenzene and hydrogen sulfide over alumina at 700 to 1,300 °F (371 to 704 °C). The disulfide is the primary byproduct. (wikipedia.org)
  • An organic compound consisting entirely of hydrogen and carbon. (engineeringtoolbox.com)
  • Many sulfur compounds are odoriferous, and the smells of odorized natural gas , skunk scent, bad breath , grapefruit , and garlic are due to organosulfur compounds. (wiki2.org)
  • Garlic has been found to contain a large number of potent bioactive compounds with anticancer properties, largely allylsulfide derivatives. (wurbal.in)
  • Garlic (Allium sativum) is rich in organosulfur compounds (e.g. allicin, glutathione), which promote many health benefits. (hielscher.com)
  • The use of a probe-type sonicator for the extraction of allicin and organosulfur compounds from garlic offers several advantages, including high yields and high quality of garlic extract, rapid processing, and a solvent-free, environmentally friendly approach. (hielscher.com)
  • The shorter extraction duration reduces the exposure of the garlic extract to heat and oxygen, which can degrade the sensitive organosulfur compounds. (hielscher.com)
  • For the production of highly concentrated garlic extracts with high amounts of organosulfur compounds, ultrasonic extraction is a reliable and efficient technique to isolate thiols and other bioactive substances from garlic. (hielscher.com)
  • Sonicator UP200Ht for the extraction of allicin, organosulfur compounds and phytochemicals from garlic. (hielscher.com)
  • In scientific studies, several research teams have demonstrated that sonication yield in high allicin, alliin, organosulfur compounds and other phytochemicals from garlic. (hielscher.com)
  • An exception is the oxygen atom in the hydroxyl group (-OH) bonded to the aromatic ring is replaced by a sulfur atom. (wikipedia.org)
  • The prefix thio- implies a sulfur-containing compound and when used before a root word name for a compound which would normally contain an oxygen atom, in the case of 'thiol' that the alcohol oxygen atom is replaced by a sulfur atom. (wikipedia.org)
  • Sulfur is an essential element for all life, almost always in the form of organosulfur compounds or metal sulfides. (wiki2.org)
  • cystine , taurine , etc.) and two vitamins ( biotin and thiamine ) are organosulfur compounds crucial for life. (wiki2.org)