Phenolic Composition and Antioxidant Activity in Seed Coats of 60 Chinese Black Soybean (Glycine max L. Merr.) Varieties
文献类型: 外文期刊
作者: Zhang, Rui Fen 1 ; Zhang, Fang Xuan 1 ; Zhang, Ming Wei 1 ; Wei, Zhen Cheng 1 ; Yang, Chun Ying 1 ; Zhang, Yan 1 ; Tan 1 ;
作者机构: 1.Guangdong Acad Agr Sci, Biotech Res Inst, Minist Agr, Key Lab Funct Food Res, Guangzhou 510610, Peoples R China
关键词: black soybean;seed coat;anthocyanins;phenolics;antioxidant activity
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN: 0021-8561
年卷期: 2011 年 59 卷 11 期
页码:
收录情况: SCI
摘要: Phenolics in black soybean seed coat (BSSC) are considered to be responsible for the health benefits of black soybean. BSSCs of 60 Chinese varieties were examined for phenolic contents, anthocyanin profiles, and antioxidant activity. Total phenolic and condensed tannin contents ranged from 512.2 to 6057.9 mg gallic acid equivalents/100 g and from 137.2 to 1741.1 mg (+)-catechin equivalents/100 g, respectively. Six anthocyanins (delphinidin-3-glucoside, cyanidin-3-galactoside, cyanidin-3-glucoside, petunidin-3-glucoside, peonidin-3-glucoside, and malvidin-3-glucoside) were detected by HPLC. Total anthocyanin contents (TAC) were from 98.8 to 2132.5 mg/100 g, and cyanidin-3-glucoside was the most abundant anthocyanin in all varieties, with a distribution of 48.8-94.1% of TAC. Antioxidant properties detected by DPPH, FRAP, and ORAC methods all showed wide variations ranging from 4.8 to 65.3 mu g/100 mL (expressed as EC(50)), from 17.5 to 105.8 units/g, and from 42.5 to 1834.6 mu mol Trolox equivalent/g, respectively. Sixty varieties were classified into four groups by hierarchical clustering analysis, and group 4 consisting of nine varieties had the highest phytochemicals content and antioxidant activity.
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