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投稿时间：2019-10-28
投稿时间：2019-10-28
中文摘要: 采用离子液体-超声波辅助法对葛根黄酮进行提取和工艺优化。以葛根提取物为原料，溴化-1-丁基-3-甲基咪唑为提取剂，在单因素试验的基础上，通过正交试验设计，以葛根黄酮提取量为指标，考察葛根黄酮的抗氧化活性。最优工艺条件为：葛根提取物与离子液体固液比为1∶10（g/mL），离子液体浓度为0.5 mol/L，在70℃、超声功率250 W下超声辅助提取30 min。在此条件下，葛根黄酮的提取量为774.95 mg/g。葛根黄酮提取物对DPPH自由基具有明显的清除作用。
Abstract:Pueraria flavonoids was extracted and optimized by ionic liquid-based ultrasonic-assisted extraction method.Using pueraria extracts as the material，1-butyl-3-methylimidazolium bromide was taken as extraction solvent，based on single-factor experiment，through orthogonal design，the extraction amount of pueraria flavonoids was used as an index，and the antioxidant activity of pueraria flavonoids was investigated.Optimal process conditions were as follows：the solid-to-liquid ratio of pueraria extracts to ionic liquid was 1 ∶10（g/mL），ionic liquid concentration was 0.5 mol/L，the ultrasonic-assisted extraction temperature was 70℃，the ultrasonic power was 250 W and the extraction time was 30 min.Under these conditions，the extraction amount of pueraria flavonoids was 774.95 mg/g.Pueraria flavonoids extracts had obvious scavenging effect on DPPH free radical.
文章编号：202020016 中图分类号： 文献标志码：
基金项目:国家自然科学基金（31871747、31201376）；黑龙江省自然科学基金项目（C2016034）；中国博士后基金资助项目（2014T70304、2013M531009）；黑龙江省普通本科高等学校青年创新人才培养计划（UNPYSCT-2016060）；哈尔滨商业大学科研项目（17XN026）；哈尔滨商业大学研究生创新项目资助（YJSCX2017-462HSD、JSCX2018-538HSD）
| Author Name | Affiliation |
| SONG Yan，GUAN Hua-nan，LIU Bo，GONG De-zhuang，ZHANG Na | College of Food Engineering，Harbin University of Commerce，Harbin 150076，Heilongjiang，China |
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