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Enhancing wheat bran quality: Comparing the effects of conventional thermal processing and microwave-assisted hydrolysis
Food Chemistry ( IF 9.8 ) Pub Date : 2025-05-31 , DOI: 10.1016/j.foodchem.2025.144984
Reham Ahmed Khashaba Haiwei Lou Zhonghua Gu Saeed Hamid Saeed Omer Xunda Wang Renyong Zhao

Wheat bran is a source of bioactive compounds at a low cost, but the cell wall matrix notably limits the accessibility of bran bioactive compounds. This study investigated the effect of hot air oven treatment (C-HAO), microwave treatment (C-MWO), and microwave-assisted hydrolysis (HY-MW) on the quality attributes of wheat bran (WB) and explored its digestibility during in vitro digestion. Conventional treatments yielded the highest omega-6/omega-3 ratio, while the HY-MW process at 70 °C demonstrated the lowest and the best ratio. Conventional treatments showed higher volatile compound content, and HY-MW at 70 °C showed the lowest content (15.70 μg/g). It showed that HY-MW treatments effectively released WB phenolic compounds. Moreover, HY-MW treatments at 70 °C showed higher bioaccessible phenolic compounds content (1168 %) than raw WB. A combination of microwave and hydrolysis is a practical nonthermal approach to improve WB quality, which could facilitate the application of bran as a multifunctional nutrient.

中文翻译:

提高麦麸品质:比较传统热处理和微波辅助水解的效果

麦麸是低成本的生物活性化合物来源,但细胞壁基质明显限制了麸皮生物活性化合物的可及性。本研究探讨了热风炉处理 (C-HAO) 、微波处理 (C-MWO) 和微波辅助水解 (HY-MW) 对麦麸 (WB) 品质属性的影响,并探讨了其在体外消化过程中的消化率。传统处理产生的 omega-6/omega-3 比率最高,而 70 °C 的 HY-MW 工艺表现出最低和最好的比率。常规处理挥发性化合物含量较高,70 °C 时 HY-MW 含量最低 (15.70 μg/g)。结果表明,HY-MW 处理可有效释放 WB 酚类化合物。此外,70 °C 的 HY-MW 处理显示出比原始 WB 更高的生物可利用酚类化合物含量 (1168 %)。微波和水解相结合是提高 WB 质量的实用非热方法,可促进麸皮作为多功能营养素的应用。
更新日期:2025-05-31
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