Abstract: Analysis of a methanolic extract of Tagetes lucida leaves has resulted in the isolation of a new flavonol glycoside, quercetagenin 3,4‘-dimethyl ether 7-O-β-d-glucopyranoside (1), two new phenolic acids, 3-(2-O-β-d-glucopyranosyl-4-methoxyphenyl)propanoic acid (2) and its methylester (3), and known flavonols, aromatic acids, and 7-methoxycoumarin. Using the DPPH° test, the extract and some of its constituents showed a significant free-radical-scavenging effect in comparison to α-tocopherol and standard flavonols.
An extract of Tagetes lucida and its phenolic constituents as antioxidants
AQUINO, Rita Patrizia;MORELLI, Silvana;RASTRELLI, Luca
2002-01-01
Abstract
Abstract: Analysis of a methanolic extract of Tagetes lucida leaves has resulted in the isolation of a new flavonol glycoside, quercetagenin 3,4‘-dimethyl ether 7-O-β-d-glucopyranoside (1), two new phenolic acids, 3-(2-O-β-d-glucopyranosyl-4-methoxyphenyl)propanoic acid (2) and its methylester (3), and known flavonols, aromatic acids, and 7-methoxycoumarin. Using the DPPH° test, the extract and some of its constituents showed a significant free-radical-scavenging effect in comparison to α-tocopherol and standard flavonols.File in questo prodotto:
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