Methods in Polyphenol Analysis
Celestino Santos-Buelga, Gary Williamson
Royal Society of Chemistry, 2003 - Science - 383 pages
Polyphenols make a vital contribution to the colour, tanning, taste and astringency of so many of society's favourites - from the unique taste of the British cup of tea to a glass of red wine. Found widely in many foods of plant origin, polyphenols are also becoming increasingly recognised as antioxidants in the body, with action on long-term health and reduction in the risk of chronic disease. Due to the importance of polyphenols, it is vital to conduct accurate and sensitive analysis. Providing detailed state-of-the-art research, presented in a practical and effective way, Methods in Polyphenol Analysis looks at the latest techniques in this developing field and includes, among others: New modern techniques, such as LC-MS, LC-NMR and LC-coulometric detection; Chemical and enzymatic synthesis of polyphenol conjugates; and Characterization of oligomeric and polymeric tannins and complex polyphenols. This timely publication is written by highly experienced practitioners in this field and will be invaluable to all academics and industrialists involved in phytochemistry, biochemistry and food science.
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Polyphenol Extraction from Foods
Supercritical Fluid Extraction
Methods of Polyphenol Extraction from Biological Fluids
31 other sections not shown
absorption acetate acetone acetonitrile acylated aglycone analysis anthocyanins aqueous B-ring Band catechin centrifuged chalcone Chem chemical Cheynier Chromatogr chromatography cinnamic column compounds conjugates daidzein derivatives detection detector dihydrochalcones electrode elution enzyme epicatechin extract Figure filtration flavan-3-ols flavanones flavones flavonoids flavonols flavylium Food Chem fraction gallate glucuronides glycosides gradient hesperidin HPLC hydrolysis hydroxyl hydroxyl groups identification isoflavones isomers isorhamnetin J. B. Harborne LC-NMR M. N. Clifford MeOH methanol method methyl mixture mmol mobile phase moieties molecular weight molecules Moutounet obtained OH OH oligomers on-line oxidation peak phenolic phenoxyl radicals Phytochemistry plant plasma polar polymerization polymers polyphenols position potential precipitate present proanthocyanidins procyanidin protons quercetin quinic acid reaction reagent residue retention reversed-phase ring sample Sci Food Agric separation Sephadex signals soluble solution solvent spectrum stop-flow structure substitution sugar sulfate tannins techniques temperature UV spectra yield