• Nine polyphenol compounds were detected including 8 flavonoids and a nonflavonoid compound in the pods of all hybrids. (hindawi.com)
  • Many of the biological effects of flavonoids appear to be related to their ability to modulate a number of cell-signaling cascades. (oregonstate.edu)
  • Natural fern extract rich in polyphenols and flavonoids, combined with Green Tea extract, provides biological photo-protection. (facethefuture.co.uk)
  • Flavonoids, a class of polyphenols, have exhibited multifaceted implications against several diseases including cancer, without showing significant toxicity towards the normal cells. (lu.se)
  • 13,14 Among the secondary metabolites, the flavonoids are a group of compounds synthesized from cinnamic acid derivatives coupled with three acetate units that display several biological roles. (rsc.org)
  • Besides the natural bioactive properties in plants, flavonoids are phytochemicals with several medically-relevant biological activities such as antiviral, antifungal, antibacterial antihepatotoxic, anti-osteoporotic, antiulcer, anti-proliferative. (rsc.org)
  • The most abundant subgroup of polyphenols before and after in vitro digestion were the flavanones, representing more than 86% of TPC. (unav.edu)
  • Each group evaluated the sensory qualities of a geographically paired organic (OW) and conventional wine (CW) and an artificially colored white wine placebo (PW) with significantly differing total polyphenol concentrations (TP). (scirp.org)
  • K. Martin and K. Rasmussen, "Comparison of Sensory Qualities of Geographically Paired Organic and Conventional Red Wines from the Southwestern US with Differing Total Polyphenol Concentrations: A Randomized Pilot Study," Food and Nutrition Sciences , Vol. 2 No. 10, 2011, pp. 1150-1159. (scirp.org)
  • Cereals, chocolate and dry legumes also contribute to the total polyphenol intake 67 . (bvsalud.org)
  • Chocolate is very rich in PPs, and a minor consumption of chocolate may significantly contribute to total polyphenol intake 68 . (bvsalud.org)
  • Banana root PPO activity is strongly inhibited by dithiothreitol and sodium metabisulfite, as is banana fruit PPO by similar sulfur-containing compounds including sodium dithionite and cysteine, in addition to ascorbic acid (vitamin C). Several assays were developed to monitor the activity of polyphenol oxidases and to evaluate the inhibition potency of polyphenol oxidase inhibitors. (wikipedia.org)
  • Besides it provides a valuable snapshot of the chemical structure-activity relationship of compounds, highlighting the presence or absence of some specific atoms and chemical units in the structure of compounds can greatly influence their biological activities. (frontiersin.org)
  • 15 These polyphenol compounds are characterized by the C 15 skeleton arranged in two phenyl rings and a heterocyclic ring (C 6 -C 3 -C 6 ). (rsc.org)
  • Ascophyllum nodosum contains many valuable compounds, including polyphenols, peptides, and carotenoids that have been shown to exhibit biological activities. (matis.is)
  • also polyphenol oxidase i, chloroplastic), an enzyme involved in fruit browning, is a tetramer that contains four atoms of copper per molecule. (wikipedia.org)
  • Plants make use of polyphenol oxidase as one in a suite of chemical defences against parasites. (wikipedia.org)
  • Tropolone is a grape polyphenol oxidase inhibitor. (wikipedia.org)
  • The most common UV/Vis spectrophotometry assay involves the monitoring of the formation of o-quinones, which are the products of polyphenol oxidase-catalysed reactions, or the consumption of the substrate. (wikipedia.org)
  • Polyphenol oxidase is an enzyme found throughout the plant and animal kingdoms, including most fruits and vegetables. (wikipedia.org)
  • Polyphenols (PPs) are reactive metabolites abundant in plant derived foods, especially fruits, seeds and leaves. (bvsalud.org)
  • Six hybrids were subjected to chromatographic analyses by HPLC for the determination of phytochemicals such as capsaicinoid, polyphenol, and vitamin C. The dynamics of ripening of 4 of the hybrids were also characterised. (hindawi.com)
  • Learn more about polyphenols and phytochemicals here. (medicalnewstoday.com)
  • Non-biological haze formation results primarily from hydrogen bonding between haze-producing proteins and the polyphenol constituents of beer. (ashland.com)
  • Tea catechins and polyphenols: health effects, metabolism, and antioxidant functions. (oregonstate.edu)
  • Areas of major research interest include identification of novel biomarkers of diet, metabolic mechanisms of cancer development (e.g. gut barrier functionality, the gut-liver axis, microbiome dysbiosis, bile acid metabolism), novel exogenous or endogenous exposures (e.g. glycation products and dicarbonyl stress, polyphenols), and the microbial exposome. (who.int)
  • Polyphenols are secondary metabolites of plants and are generally involved in defense against ultraviolet radiation or aggression by pathogens. (wellnessresources.com)
  • In plants, polyphenols contribute to resistance to pathogens due to their potent astringency and function as phytoalexins. (scirp.org)
  • Polyphenols are the predominant bioactive compound in brown algae and are accountable for the majority of its biological activity. (nih.gov)
  • Fucoxanthin, a brown algae carotenoid, has attracted great interest because of its numerous biological activities supported by in vitro and in vivo studies. (researchgate.net)
  • Dietary polyphenols have gained public interest in recent times due to their roles in the prevention of various diseases that implicate free radicals/reactive oxygen species. (frontiersin.org)
  • This review updates the information on marine polyphenols, with a particular focus on phlorotannins and their potential health benefits in relation to the prevention and treatment of risk factors for type 2 diabetes and cardiovascular diseases. (nih.gov)
  • These wonder foods are well known for their antioxidant and anti-inflammatory properties due for the most part to the substances that give them color, polyphenols, or more specifically anthocyanins. (selfgrowth.com)
  • While other analytic methodologies may be used, ORAC is often considered preferable because of its biological relevance to antioxidant action in vivo (in living organisms). (lifeextension.com)
  • Trans-resveratrol is a polyphenol with great antioxidant action that reduces the oxidative stress. (bvsalud.org)
  • including a discussion of the chemistry and biosynthesis of polyphenols by R. K. Gupta and E. Haslam. (who.int)
  • The in vitro digestion process decreased 25% the bioaccessibility of SO polyphenols in the intestinal phase. (unav.edu)
  • The bioavailability of these polyphenols in vivo is a major determinant in their ability to exert biological activities relevant to human health. (oregonstate.edu)
  • Polyphenols exert preventive activity against infectious and degenerative diseases including oral diseases. (bvsalud.org)
  • Polyphenols (PPs) exert preventive activity against infectious and degenerative diseases and may also help prevent oral diseases via various mechanisms 58 . (bvsalud.org)
  • Polyclar 10 beer stabilizer complexes with specific polyphenols in beer via hydrogen bonding and is then removed during filtration. (ashland.com)
  • By adjusting experimental parameters, inulin was conjugated with polyphenols to form short-chain inulin-gallic acid complexes, short-chain inulin-tea polyphenol complexes, long-chain inulin-gallic acid complexes, and long-chain inulin-tea polyphenol complexes. (ncl.edu.tw)
  • In the preparation of short-chain inulin-polyphenol complexes, the amount of H2O2/AA, H2O2 concentration, and H2O2/AA reaction time all affected the total phenolic content of the inulin-polyphenol complexes. (ncl.edu.tw)
  • With an increase in the amount of H2O2/AA and higher H2O2 concentration, the total phenolic content of the inulin-polyphenol complexes also increased. (ncl.edu.tw)
  • In the second part, after determining the experimental conditions, the physicochemical properties of four different inulin-polyphenol complexes were evaluated. (ncl.edu.tw)
  • More recent studies have focused on the biological activity of various extracts of cocoa or of waste materials from the chocolate industry, such as cocoa bean husk, which is known to contain high concentrations of polyphenols. (bvsalud.org)
  • Epidemiological studies and associated meta-analyses strongly suggest that long term consumption of diets rich in plant polyphenols offer protection against development of cancers, cardiovascular diseases, diabetes, osteoporosis and neurodegenerative diseases. (wellnessresources.com)
  • A growing body of scientific evidence shows that berry polyphenols' antioxidant capacity powerfully targets numerous degenerative diseases, from cancer and atherosclerosis to impaired glucose control and blood lipid abnormalities. (lifeextension.com)
  • According to a hypothesis, polyphenol (PP) activity against several forms of cancer, proliferative diseases, inflammation and neurodegeneration is mainly exerted through the inhibiting and modulating activities against a wide range of receptors, enzymes and transcription molecules 88 . (bvsalud.org)
  • Phlorotannins are a type of polyphenol that are unique to marine sources and have exhibited protective effects against hyperglycemia, hyperlipidemia, inflammation and oxidative stress, known risk factors for cardiovascular disease and diabetic complications, in cell culture, animal studies and some human studies. (nih.gov)
  • Stuart, J.A. and Robb, E.L. Bioactive Polyphenols from Wine Grapes. (brocku.ca)
  • Several valuable ingredients were obtained in the press liquid, including polyphenols, which can be used in the development of new high-value bioactive products. (matis.is)
  • Their bioavailability and biological activities in humans appear to be strongly influenced by their chemical nature. (oregonstate.edu)
  • Find out how these and other findings confirm berry polyphenols' unrivalled capacity to blunt free radical damage and thwart degenerative disease. (lifeextension.com)
  • The number and characteristics of these phenol structures underlie the unique physical, chemical, and biological (metabolic, toxic, therapeutic, etc.) properties of particular members of the polyphenol class. (medicalxpress.com)
  • Since polyphenols also play an important role in the sensory qualities of fruits and wines particularly involving astringency and bitterness, there may be differences that affect sensory perceptions of wine. (scirp.org)
  • Cocoa polyphenols tend to reduce inflammation by regulating proinflammatory mediators and controlling processes that oxidize low density lipids (LDL) in the development of atherosclerosis 73 . (bvsalud.org)
  • I. Lesschaeve and A. Noble, "Polyphenols: Factors Influencing Their Sensory Properties and Their Effects on Food and Beverage Preferences," American Journal of Clinical Nutrition, Vol. 81, No. 1, 2005, pp. 330S-335S. (scirp.org)
  • The findings from these data bases suggest that while dietary polyphenols may not replace the need for the existing therapies in the management of BPH, they hold promise in BPH management which could be explored by researchers working in this field. (frontiersin.org)
  • After consuming a blend of açaí polyphenols, researchers recorded a three-fold increase in antioxidant capacity in the blood of healthy human volunteers. (lifeextension.com)
  • The polyphenol content in pungent peppers is found to be influenced by genotype and the ripening process [ 18 - 20 ]. (hindawi.com)
  • The objective of the present work is to investigate capsaicinoid, polyphenol, and vitamin C content in six hybrids of chili pepper (Bandai, Beibeihong, Lolo, Chili 3735, Fire Flame, and Star Flame) using recently developed liquid chromatographic method in the determinations. (hindawi.com)
  • The addition of the polyphenol solution to the reaction system and subsequent reaction completion within 30 minutes had no effect on the total phenolic content. (ncl.edu.tw)
  • The ORAC value of a given food is proportional to its polyphenol content. (lifeextension.com)
  • They play pivotal roles in regulation of various biological and. (lu.se)
  • Polyphenolic Profiling, Quantitative Assessment and Biological Activities of Tunisian Native Mentha rotundifolia (L.) Huds. (mdpi.com)
  • Our study revealed that the possible mechanism of the biological activities in onion could be due to the free radical scavenging and antioxidant activities. (scirp.org)
  • The polyphenols present in the onion bulbs may be responsible for these beneficial activities. (scirp.org)
  • However, the role of these polyphenols in the management of BPH and their mechanisms of action are yet to be reported. (frontiersin.org)
  • The elderberry may play a larger role than previously thought in counteracting the decline in neuronal and cognitive functions, particularly in Alzheimer's disease, according to research presented at the 10th World congress on Polyphenol Applications. (nutraingredients-usa.com)
  • In insects, cuticular polyphenol oxidases are present and their products are responsible for desiccation tolerance. (wikipedia.org)
  • However, the bioactivity depends directly on the bioaccessibility affected by biological factors during the digestion process. (unav.edu)
  • Rosmarinus officinalis L.: an update review of its phytochemistry and biological activity. (webmd.com)
  • Naturex's launch of a new cranberry extract sees the company moving beyond proanthocyanidins (PACs) as a marker of efficacy towards anti-adhesion activity (AAA), something it sees as a more relevant biological marker of benefits to urinary tract health. (nutraingredients-usa.com)
  • When the condensed complex polyphenols were refined, leucocyte recruitment activity was enhanced so that exposure to 0.1 percent solution for 4 hours produced 1.19 PMN per airway compared to a ratio of 0.81 after 4 hours exposure to a 1 percent solution of the crude extract. (cdc.gov)
  • SOR), hydrogen peroxide, and 2, 2-Diphenyl-2-picrylhydrazyl (DPPH) radical activity by a model (most biological y active) of the anticancer plant was also evaluated. (who.int)
  • The research must include quality human studies that meet specific criteria and biological explanations for the findings. (aicr.org)
  • This establishes a conundrum where dietary polyphenols are healthful but potentially unpalatable.We recruited and randomized 18 female participants (21 - 50 y) to one of five groups (3 - 4 per group). (scirp.org)
  • Sweet orange (SO) (Citrus sinensis) is a rich source of polyphenols. (unav.edu)
  • Known as the French paradox, a low incidence of coronary heart disease despite substantial intake of saturated fats is thought to be due to a diet rich in polyphenols. (medicalxpress.com)
  • Better knowledge of dietary polyphenols could offer a very economical public health intervention in maintaining oral health. (bvsalud.org)
  • Fisetin is a unique polyphenol flavonoid that has demonstrated a high level of neuro-protection along with improvement of memory. (selfgrowth.com)
  • The basic cancer-related chemical and biological sciences, pathology, and epidemiology have contributed to (1) the understanding that antimutagenesis and antiproliferation are the important general mechanisms of chemoprevention and (2) the development of antimutagenic and antiproliferative agents as potential chemopreventive drugs. (medscape.com)
  • K. R. Martin and C. Appel, "Polyphenols as Dietary Supplements: A Double-Edged Sword," Nutrition and Dietary Supplements, Vol. 2010, No. 2, 2009, pp. 1-12. (scirp.org)
  • Natural polyphenols have increasingly gained public interest in recent times. (frontiersin.org)
  • Polyphenols (noun, pronunciation of the singular /pɑli'finəl/ or /pɑli'fɛnəl/) are a structural class of natural, synthetic, and semisynthetic organic chemicals characterized by the presence of large multiples of phenol structural units (right). (medicalxpress.com)
  • It is optimized for single use on its own or in conjunction with other stabilizers, to offer a highly effective means of preventing non-biological haze in all types of beer. (ashland.com)