食品工业科技2017，Vol.38Issue(20)：25-29,5.DOI:10.13386/j.issn1002-0306.2017.20.006
20种黑米的总酚含量与抗氧化活性
Total phenolic contents of 20 varieties of black rice and antioxidant activities
摘要
Abstract
Polyphenols from 20 black rice varieties were separated with ultrasound-assisted ethonal methods.The total polyphenolic content was evaluated by Folin-Coleau method.The antioxidant activities were analyzed with potassium ferricyanide,ferric reducing-antioxidant power (FRAP) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) methods,respectively.Correlation analysis was carried out between total polyphenolic content and antioxidant capacities determined by different methods.The results showed that the total polyphenolic content and antioxidant capacity differs among black rice varieties.The total polyphenolic content was among(2.305 ± 0.035)and (4.842 ± 0.030) mg/g.The elected five rice varieties possessed higher polyphenolic content and higher antioxidant capacities.Through the correlation analysis,it was found that the antioxidant capacity and polyphenols contents showed a significant positive correlation (R2 ＞ 0.900,p ＜ 0.01).The study provides an important reference value and scientific basis for the comprehensive selective breeding and development and utilization of black rice varieties.关键词
黑米/总酚含量/抗氧化活性/相关性Key words
black rice/total phenol content/antioxidant activity/correlation分类
轻工纺织引用本文复制引用
李静,焦雪,华泽田,周中凯..20种黑米的总酚含量与抗氧化活性[J].食品工业科技,2017,38(20):25-29,5.基金项目
国家自然科学基金(31471701) （31471701）
天津市高等学校科技发展基金计划资助项目(20120608) （20120608）
天津科技大学新农村发展研究院开放基金资助项目(Xnc 201609). （Xnc 201609）
