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Showing 1 to 20 of 42 for “"epicatechin"”.
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Study of Neem bark tannins for the leather industry
… as: One procyanidin trirner Four dimers Cl Epicatechin-[4a-8j-epicatechin epicatechin. B1 Epicatechin- [4[3-8]-catechin, B2 Epicatechin- [43-8]-epicatechin, B3 Catechin-[4ct-81-catechin, B4 Catechin-[4a-81-epicatechin. Four well known monomers (+)-Catechin, (-)-Epicatechin, …
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Microreactor synthesis of labelled polyphenols : a route to antibacterial modes of action in important hospital pathogens
… of the PhD were to synthesize deuterium labelled epicatechin in a microreactor, discover if theaflavin and epicatechin possess antibacterial action against important hospital pathogens and to determine if synergy exists between polyphenols and between polyphenol and current antibiotics. Other aims …
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Investigation of the antibacterial activity of selected flavonoids.
… occurring flavonoids), and 3-O-octanoyl-(-)-epicatechin (a semi-synthetic flavonoid), were screened for inhibitory activity against antibiotic sensitive and resistant strains of Staphylococcus aureus, Enterococcus faecalis, Enterococcus faecium, Escherichia coli and Pseudomonas aeruginosa. …
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Functional study of Gap Junctional Intercellular Communication in Human Keratinocyte Cell Line
… drug level of acetic acid , H₂O₂, dexamethasone, Epicatechin epigallocatechin-3-gallate, Epicatechin and retinoic acid were assesed by Neutral red uptake test. The adequate concentration of these six material was determined and added to the culture medium of the HaCaT cell line. Scrape-loading dye …
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Understanding the molecular mechanism of postharvest seed coat darkening in pinto beans
… of PA monomers. PvMATE8 is able to transport epicatechin-3´-O-glucosides, not epicatechin aglycons from cytosol to the vacuole and thus ensuring substrate flow to maintain a feedback regulation for upstream epicatechin biosynthesis. Knowing the mechanism and committed steps of the PA pathway …
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The minor theaflavins of black tea
… B (1) has been shown to be formed from (-)-epicatechin-3-0-gallate (ECG) and (-)-epicatechin (EC). This is the first compound to be isolated from black tea which contains a benzotropolone moiety formed from a galloyl ester group of a flavan-3-ol gallate. In addition, the theaflavin isomers, …
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Einfluss von Drogenextrakten und Naturstoffen auf die endotheliale NO-Synthase
… und Blätterextrakt WS1442 •Die Catechinderivate Epicatechin-3-gallat und Epigallocatechin-3-gallat •Die Rotweinpolyphenole Delphinidin, Quercetin, Epicatechin und Rutin Dagegen konnten Isoflavone der Sojabohne, wie Genistein, Daidzein, Formononetin, Biochanin A und Equol die eNOS …
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The Chemistry of Flavonoids in Model Beverages and Human Milk
… at 1, 4, and 13-wk postpartum intervals. Epicatechin (63.7-828.5 nmol/L), epicatechin gallate (55.7-645.6 nmol/L), epigallocatechin gallate (215.1-2364.7 nmol/L), naringenin (64.1-722.0 nmol/L), kaempferol (7.8-71.4 nmol/L),hesperetin (74.8-1603.1 nmol/L), and quercetin (32.5-108.6 nmol/L) …
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Interaction of milk proteins with kiwifruit and mixed fruit polyphenols : A dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Food Innovation at Lincoln University
… extracts showed predominant amounts of catechin, epicatechin and procyanidin B1 and B2, along with smaller amounts of other phenols such as caffeic acid, gallic acid, protocatechuic acid, syringic acid, rutin and quercetin. The HPLC extraction was carried out in various step using 70% acetone …
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Protein engineering of cota laccase by using bacillus subtilis spore display
… phenolic compounds, such as (+)-catechin, (-)-epicatechin and sinapic acid in aqueous-organic media. In general, the catalytic efficiency (V<sub>max</sub>/K<sub>m</sub> ([delta]A/OD580)/mM) of T480A-CotA is higher than wt-CotA for all the substrates. Then, the V<sub>max</sub> for T480A-CotA is …
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Effects of Tea on Peripheral and Cerebral Micro- and Macrovascular Function in Humans
… 7 was to examine the effect of acute oral (-)-epicatechin ingestion on cerebrovascular function in healthy adults. Seven healthy males (32 ± 13 yrs, BMI 25 ± 1 kg/m2) attended two experimental trials ((-)-epicatechin and placebo) 7-days apart in a randomised, controlled, double-blind, …
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Small Molecules as Amyloid Inhibitors: Molecular Dynamic Simulations with Human Islet Amyloid Polypeptide (IAPP)
… presence of morin, quercetin, dihydroquercetin, epicatechin, and myricetin. Contacts between Phe23 residues are critical to oligomer formation, and small-molecule contacts with Phe23 are a key predictor of β-strand reduction. Structural properties influencing the ability of compounds to disrupt …
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Studies on the interaction of surfactants and neutral cyclodextrins by capillary electrophoresis. Application to chiral analysis
… epimerisation of epi-structured catechins, (-)-Epicatechin and (-)-Epigallocatechin, to non epi-structured (-)-Catechin and (-)-Gallocatechin. The latter compounds, being non-native molecules, were for the first time regarded as useful phytomarkers of tea sample degradation. The proposed method …
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In vitro-Untersuchungen zu Inhaltsstoffen von Hypericum perforatum L. sowie topische Anwendung von Hypericum perforatum-Extrakten bei der Atopischen Dermatitis
… wie Biapigenin, Amentoflavon, Myricetin, Epicatechin, Hyperosid, Kaffeesäure und Chlorogensäure zeigten keine therapeutisch wirksame Proliferationshemmung im Proliferationsessay mit 3H-Thymidin oder im BRDU-Elisa. Wir haben den Apoptosemechanismus, der durch Luteolin an Jurkatzellen …
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Managing Apple Maturity and Storage to Increase the Quality of Virginia Hard Ciders
… with ciders made from cv. York having 20% higher epicatechin concentration when stored for 6 weeks at 1°C rather than 10°C. Finally, the accuracy of the Folin-Ciocalteu (FC) assay, commonly used for quantification of total polyphenols in fruit juices and fermented fruit beverages was critically …
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Study of melissopalynological, physical and chemical properties, antioxidant and xanthine oxidase inhibition activity of heterotrigona itama honey in Johor, Malaysia
… detected six phenolic acids (chlorogenic acid, epicatechin, P-Coumaric acid, rutin, catechin and protocatheuic) which present in various combination. Unifloral honey (R. mucronata) possessed the highest phenolic (413.94 mg GAE/100g) and flavonoid (179.36 mg RE/100g) content and have the highest …
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Flavonoid Consumption of College Athletes
… of cyaniding, pelargonidin, peonidin, petunidin, epicatechin-3-gallate, epigallocatechin, epigallocatechin-3-gallate, gallocatechin, kaempferol, and quercetin were associated with lower BMI. So are the intakes of flavones, flavonols and total flavonoids. Multiple regression model including gender, …
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Antioxidant activity, protective effects and absorption of polyphenolic compounds
… indicate that gallic acid, (+)-catechin, (-)-epicatechin, and procyanidin dimersB1 and B2 were the major in vitro antioxidants identified in red wine. Collectively, the flavin-3-ols contributed > 50% of the total antioxidant capacity of each wine, while gallic acid contributed between 24-44%. …
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Effect of a polyphenol-rich diet on vascular function and other markers of cardiovascular risk
… status, including vitamin C, carotenoids and epicatechin. Other measures of cardiovascular risk included biochemical markers, such as lipid profile, hsCRP, PAI-1, 11-dehydrothromboxane B2 and heart rate variability on 24 hour ambulatory ECG monitor.ResultsA total of 99 volunteers completed the …
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