三种色素小麦品种不同麸皮中酚酸的分布及抗氧化活性,Journal of Chemistry

当前位置： X-MOL 学术 › J. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

三种色素小麦品种不同麸皮中酚酸的分布及抗氧化活性
Journal of Chemistry ( IF 2.8 ) Pub Date : 2018-01-01 , DOI: 10.1155/2018/6459243
Jinli Zhang ₁ , Yan Ding ₁ , Haizhou Dong ₁ , Hanxue Hou ₁ , Xiansheng Zhang ₂

Affiliation

分析了蓝色、黑色和紫色小麦的外麸、粗麸和短裤的酚酸谱和抗氧化活性。酚酸主要以结合形式存在于有色麦麸级分中。三种色素小麦品种的酚酸含量依次为外麸、粗麸和短粒。酚类提取物的 HPLC 分析表明，与游离形式相比，酚酸的结合形式含有更多的阿魏酸、异阿魏酸和对香豆酸。在三种色素小麦品种中，蓝色小麦的麸皮成分比其他两种色素小麦麸皮成分含有更高的结合酚酸，紫色粗麸除外。蓝色小麦外麸皮的总结合酚酸最高，为 3458.71 μg/g，而紫色小麦短裤的总结合酚酸最低，为 1730。71微克/克。结合酚酸对总酚含量和抗氧化活性的贡献显着高于游离酚酸。蓝色麦麸组分对 DPPH∙ 的自由基清除活性最高，而紫色麦麸组分对 ABTS∙+ 的清除活性最高。观察到 TPC 与 DPPH 和 ABTS 的自由基清除能力之间存在高度相关性 ( , )。

"点击查看英文标题和摘要"

Distribution of Phenolic Acids and Antioxidant Activities of Different Bran Fractions from Three Pigmented Wheat Varieties

Phenolic acid profiles and antioxidant activities of outer bran, coarse bran, and shorts from blue, black, and purple wheat were analyzed. Phenolic acids were mainly in the bound form in pigmented wheat bran fractions. Phenolic acid content decreased in the order of outer bran, coarse bran, and shorts for the three pigmented wheat varieties. HPLC analysis of phenolic extracts demonstrated that the bound form of phenolic acids contained more ferulic, isoferulic, and p-coumaric acids compared to their free counterparts. Among the three pigmented wheat varieties, the bran fractions from blue wheat contained higher bound phenolic acids than the other two pigmented wheat bran fractions, except for purple coarse bran. The blue wheat outer bran had the highest total bound phenolic acid of 3458.71 μg/g while the purple wheat shorts had the lowest of 1730.71 μg/g. The contribution of bound phenolic acids to the total phenolic content and antioxidant activity was significantly higher than that of free phenolic acids. Blue wheat bran fractions had the highest radical scavenging activity against DPPH∙ while those of purple wheat gained the highest ABTS∙+ scavenging activity. High correlations were observed between TPC and radical scavenging capacities for DPPH and ABTS ( , ).

更新日期：2018-01-01

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南