Antioxidant phenolic compounds from Smilax sebeana Miq.

被引：28

作者：

Ao, Changwei ^{[2
]}

Higa, Tatsunori ^{[3
]}

Khanh, Tran Dang ^{[1
]}

Upadhyay, Atul ^{[1
]}

Tawata, Shinkichi ^{[1
]}

机构：

[1] Univ Ryukyus, Fac Agr, Dept Biosci & Biotechnol, Okinawa 9030213, Japan

[2] Agr Univ Hebei, Coll Food Sci & Technol, Baoding 071001, Peoples R China

[3] Trop Plant Resources Inst Inc, Uruma City, Okinawa, Japan

来源：

LWT-FOOD SCIENCE AND TECHNOLOGY | 2011年 / 44卷 / 07期

关键词：

Smilax sebeana; Antioxidant activity; Phenolic compounds; Radical scavenging activity; EXTRACTS; IDENTIFICATION; PURIFICATION; CATECHINS; CHINA; BARK;

D O I：

10.1016/j.lwt.2011.02.001

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Methanol extract and sub-fractions of Smilax sebeana rhizomes and roots were analyzed to evaluate the compounds involved in antioxidant activity. In all separated fractions of the different polarity solvents, ethyl acetate fraction showed the highest antioxidant activity and total phenolic content. This fraction was subjected to the sephadex LH-20 column and preparative HPLC for purification. Six phenolic compounds, chlorogenic acid (1), 4-formylphenol (2), epicatechin (3), cinchonain IIa (4), Ia (5) and Ib (6) were isolated and identified by spectroscopic analyses and further evaluated their potential antioxidant activities by DPPH and superoxide radical scavenging assays. Compared with synthetic antioxidant Trolox, except 4-formylphenol, the other isolated five compounds exhibited excellent antioxidant activities. This is the first report on the chemical constituents of S. sebeana which potentially involved in antioxidant activity. The results suggest that the ethyl acetate extract of S. sebeana might be used as a readily accessible source of natural antioxidant. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1681 / 1686

页数：6

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