Phenolic compounds and antioxidant activity of sorghum grains of varying genotypes

被引：210

作者：

Dykes, L ^{[1
]}

Rooney, LW ^{[1
]}

Waniska, RD ^{[1
]}

Rooney, WL ^{[1
]}

机构：

[1] Texas A&M Univ, Cereal Qual Lab, Dept Soil & Crop Sci, College Stn, TX 77843 USA

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2005年 / 53卷 / 17期

关键词：

Sorghum bicolor(L.) Moench; total phenols; flavan-4-ols; anthocyanins; antioxidant activity; ABTS; DPPH;

D O I：

10.1021/jf050419e

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The effects of plant color, pericarp thickness, pigmented testa, and spreader genes on phenols and antioxidant activity levels of 13 sorghum genotypes were evaluated. Total phenols, condensed tannins, flavan-4-ols, and anthocyanins were measured. Antioxidant activity levels using the 2,2'-azinobis(3ethyl-benzothiazoline-6-sulfonic acid) and 2,2-diphenyl-1-picrylhydrazyl assays were evaluated. Sorghums with a pigmented testa and spreader genes (B1B2S) had the highest levels of phenols and antioxidant activity. In addition, sorghums with purple/red plants (PQ) and thick pericarp (z) genes had increased levels of phenols and antioxidant activity. Sorghums with a black pericarp had higher levels of flavan-4-ols and anthocyanins than the other varieties. This suggests that genes for plant color, pericarp thickness, presence of a pigmented testa, and spreader genes increase phenols and antioxidant activity levels. This information can be useful in the production of sorghums with increased phenols and antioxidant activity levels.

引用

页码：6813 / 6818

页数：6

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