Comparison of microwave and high-pressure processing on bound phenolic composition and antioxidant activities of sorghum hull

文献类型： 外文期刊

第一作者： Luo, Mukang

作者： Luo, Mukang;Su, Dongxiao;Luo, Mukang;Hou, Fangli;Zhang, Ruifen;Luo, Mukang;Dong, Lihong;Huang, Fei;Zhang, Ruifen;Zhang, Ruifen

作者机构：

关键词： Antioxidant activity; bound phenolic; high-pressure processing; hot water processing; microwave boiling; sorghum hull

期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.713； 五年影响因子：3.408 ）

ISSN： 0950-5423

年卷期： 2020 年 55 卷 9 期

页码：

收录情况： SCI

摘要： The influence of microwave boiling (MB treated 5, 10 and 15 s was abbreviated as MB5, MB10 and MB15, respectively) and high-pressure boiling (HB processed 10, 20 and 30 min was denoted as HB10, HB20 and HB30, respectively) processing on the composition and content of bound phenolic substances of sorghum hull and their antioxidant capacity were evaluated. Nine bound phenolic profiles were identified by HPLC-ESI-MS/MS, including syringic acid, veratric acid, p-hydroxybenzonic acid, caffeic acid, sinapic alcohol, ascorbic acid, prenylnaringenin and luteolin. Compared with traditional hot water processing (HP treated 10, 30 and 50 min was abbreviated as HP10, HP30 and HP50, respectively), the content of free procyanidins and total phenolics of sorghum hull treated with HB increased by 35.92-58.87% and 6.20-18.70%, respectively. Sorghum hull treated with HB20 possessed the highest ABTS (ABTS radical scavenging capacity) and FRAP (ferric ion reducing antioxidant power) among all treatment groups.

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