万寿菊提取物及其酚类成分作为抗氧化剂。

An extract of Tagetes lucida and its phenolic constituents as antioxidants.

作者信息

Aquino Rita, Cáceres Armando, Morelli Silvana, Rastrelli Luca

机构信息

Dipartimento di Scienze Farmaceutiche and Scuola di Specializzazione in Scienza e Tecnologia Cosmetiche, Università di Salerno, Invariante 11/C, 84084 Fisciano, Salerno, Italy.

出版信息

J Nat Prod. 2002 Dec;65(12):1773-6. doi: 10.1021/np020018i.

DOI:10.1021/np020018i

PMID:12502312

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-beta-D-glucopyranoside (1), two new phenolic acids, 3-(2-O-beta-D-glucopyranosyl-4-methoxyphenyl)propanoic acid (2) and its methylester (3), and known flavonols, aromatic acids, and 7-methoxycoumarin. Using the DPPH degrees test, the extract and some of its constituents showed a significant free-radical-scavenging effect in comparison to alpha-tocopherol and standard flavonols.

摘要

对万寿菊叶甲醇提取物的分析已分离出一种新的黄酮醇苷、槲皮万寿菊素3,4'-二甲醚7 - O-β - D -吡喃葡萄糖苷（1）、两种新的酚酸、3 -（2 - O-β - D -吡喃葡萄糖基-4 -甲氧基苯基）丙酸（2）及其甲酯（3），以及已知的黄酮醇、芳香酸和7 -甲氧基香豆素。使用DPPH法测试，与α-生育酚和标准黄酮醇相比，该提取物及其一些成分表现出显著的自由基清除作用。