亚热带植物科学2016，Vol.45Issue(3)：225-229,5.DOI:10.3969/j.issn.1009-7791.2016.03.006
基于ORAC评价多酚类化合物抗氧化活性
The Evaluation of Antioxidant Activity of Polyphenol Compounds Using ORAC
摘要
Abstract
The oxygen radical absorbance capacity (ORAC) method was validated, and then ORAC values of selected 20 phenolic compounds were determined. The results indicated that linearity (R2 =0.997), limit of detection and limit of quantification (0.5—3.1 μmol·L-1), precision (<18%), accuracy (91%—105%) were determined. And ellagic acid and gallic acid had strong antioxidant activity in p-hydroxy benzoic acid compounds. Caffeic acid and its derivatives had highest antioxidant activity in hydroxy cinnamic acid. In the flavonoid constituents, flavan-3-ols showed good antioxidant properties, followed by flavonol. ORAC was considered as simple, efficient detection method of standardization for evaluation of antioxidant activity of the phenolic compounds.关键词
氧自由基清除能力/抗氧化活性/多酚Key words
oxygen radical absorbance capacity/antioxidant activity/polyphenols分类
农业科技引用本文复制引用
常强,苏明华,陈清西,曾碧玉,王伟,李惠华..基于ORAC评价多酚类化合物抗氧化活性[J].亚热带植物科学,2016,45(3):225-229,5.基金项目
厦门市科技计划资助项目(3502Z20142001) （3502Z20142001）
