Phenolic compounds in medicinal plants
Kolesnikov, M.P.; Gins, V.K.
Prikladnaia Biokhimiia i Mikrobiologiia 37(4): 457-465
2001
ISSN/ISBN: 0555-1099 PMID: 11530671 Document Number: 534114
Compositions of phenolic substances were studied in leaves of 21 species of medicinal plants. Flavonoid levels varied from 1.94 to 5.42%, whereas total amounts of monomeric polyphenols and hydroxybenzoic acids were estimated as 0.27 to 0.57%, and hydroxycinnamic acids and their esters with quinic acid, 0.09 to 0.18%. Condensed and polymerized polyphenols were detected in amounts of 0.41 to 1.20%. Qualitative compositions of flavonoids in leaves of seven plants studied were presented. The developed analytical procedures may be useful for plant polyphenol studies and as the basis of hemotaxonomy.