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投稿时间：2021-03-01
投稿时间：2021-03-01
中文摘要: 该文对超声辅助提取荞麦总黄酮工艺进行优化，同时对通辽地区主要种植的7个荞麦品种的壳粉、全麦粉及芽粉的总黄酮得率、体外抗氧化活性进行测定。在单因素试验基础上进行Box-Behnken试验设计，试验结果表明：超声辅助提取荞麦总黄酮的最优工艺为料液比1∶50（g/mL），提取时间86 min，温度85℃，超声频率72 kHz。7个品种荞麦以珠日河苦荞芽粉中总黄酮得率最高，为（5.13±0.08）%，其DPPH自由基清除率可达（94.79±2.58）%、ABTS+自由基清除率可达（96.92±2.58）%，表明珠日河苦荞芽粉总黄酮的抗氧化能力较强。
Abstract:In this paper，ultrasonic assisted extraction of flavonoids was optimized.Total flavonoids yield and in vitro antioxidant activity of the hull，whole-wheat flour，and bud powder of seven buckwheat varieties planted in Tongliao area of China were detected.The Box-Behnken test design performed on the basis of single factor determined the conditions for the optimal ultrasonic extraction of total flavonoids from buckwheat.The optimized conditions were a solid-to-liquid ration of 1∶50（g/mL），extraction time of 86 min，temperature of 85 ℃，and ultrasonic frequency of 72 kHz.After optimization of the seven varieties of buckwheat，the yield of total flavonoids in Zhurihe tartary buckwheat bud powder was the highest（5.13±0.08）%.The DPPH free radical scavenging rate of（94.79±2.58）% and ABTS+free radical scavenging rate of（96.92±2.58）% indicated the strong antioxidant capacity of Zhurihe tartary buckwheat bud flavonoids.
文章编号：202204013 中图分类号： 文献标志码：
基金项目:内蒙古自治区高等学校教学研究项目（NJZY19149）；内蒙古自然科学基金研究项目（2019MS03079）
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