Effects of Cultivar on Phenolic Content and Antioxidant Activity of Naked Oat in China

文献类型： 外文期刊

第一作者： Tong Li-tao

作者： Tong Li-tao;Liu Li-ya;Zhong Kui;Wang Yan;Guo Li-na;Zhou Su-mei

作者机构：

关键词： oat;phenolics;cultivar;antioxidant

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2014 年 13 卷 8 期

页码：

收录情况： SCI

摘要： To evaluate the effects of naked oat cultivars on their phenolic contents and antioxidant activities, the oat seeds from 21 different cultivars in China were collected, and their major nutritional components, compositions of polyphenols, and antioxidant activities were measured. As the results, oat cultivars affected its phenolic composition and antioxidant activity significantly. Vanillin, chlorogenic acid, ferulic acid, avenanthramide C (Bc), avenanthramide A (Bp), and avenanthramide B (Bf) in oat polyphenols extracts were detected in all cultivars of oat, while caffeic acid, p-coumaric acid and rutin were partly detected. All oat cultivars showed significant free radical scavenging activity, although their activities were lower than that of vitamin C (VC). Different oat varieties showed different antioxidant activities, among which Yanke 1 had the best ability to scavenge center dot OH ((58.78 +/- 1.99) mL(-1)), Baiyan 10 showed the strongest DPPH center dot ((22.00 +/- 0.43 mu g mL(-1))) and ABTS center dot + ((6.92 +/- 0.44) mu g mL(-1)) scavenging activity, and Dingyou 1 showed good scavenging ability of DPPH center dot ((22.71 +/- 0.42) mu g mL(-1)) and center dot OH ((81.50 1.73) mu g mL(-1)). In addition, the correlation coefficients of contents between the major nutritional components in different cultivars of oat and phenolic compounds indicated that determination of main nutrients could be used as an easy technique to evaluate approximately the contents and compositions of oat polyphenols, which simplifies the selection of good oat cultivar.

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