| 淫羊藿总黄酮的超声辅助提取及其抗氧化活性 |
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| 引用本文： | 张俊生,陈莉华,汤小虎,张烨,李三艳.淫羊藿总黄酮的超声辅助提取及其抗氧化活性[J].生物加工过程,2012,10(1):13-18. |
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| 作者姓名： | 张俊生 陈莉华 汤小虎 张烨 李三艳 |
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| 作者单位： | 吉首大学化学化工学院,吉首,416000 |
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| 基金项目： | 科技部科技型中小企业技术创新基金资助项目，吉首大学校级科研计划项目 |
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| 摘 要： | 利用超声波辅助乙醇提取淫羊藿中的总黄酮,通过单因素和正交试验法获得最佳工艺条件后,考察黄酮提取物对油脂的抗氧化性能及对·OH的清除效果.结果表明:体积分数70％的乙醇、料液比(g/mL) 1:30、超声提取时间30 min、超声温度50℃时为最佳条件,得到淫羊藿提取物中总黄酮质量分数为2.246％.淫羊藿总黄酮对·OH清除效果随浓度的增大而升高,对油脂氧化亦有较强的抑制作用.
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| 关 键 词： | 抗氧化 淫羊藿 油脂 总黄酮 |
Ultrasonic-assisted ethanol extraction of flavonoids from Epimedium and their antioxidative effects on fats and oils |
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| ZHANG Junsheng,CHEN Lihua,TANG Xiaohu,ZHANG Ye,LI Sanyan.Ultrasonic-assisted ethanol extraction of flavonoids from Epimedium and their antioxidative effects on fats and oils[J].Chinese Journal of Bioprocess Engineering,2012,10(1):13-18. |
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| Authors: | ZHANG Junsheng CHEN Lihua TANG Xiaohu ZHANG Ye LI Sanyan |
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| Institution: | (College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China) |
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| Abstract: | Flavonoids were extracted from Epimedium with ultrasonic assistance,using ethanol as extraction solvent.The optimal extracting conditions were obtained based on single factor test and orthogonal experimental design.The hydroxyl radical-scavenging capacities and antioxidative activities against the peroxidation of oils and fats of the flavonoid extracts were obtained compared with reference antioxidants.Results showed that under the conditions of 70% ethanol,1∶30（g/mL） material-to-liquid ratio,and 30 min ultrasonic extracting time,the total flavonoid mass fraction of extracts was 2.246%.The extracts showed good antioxidative effects on oils and fats. |
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| Keywords: | antioxidation Epimedium fats and oils flavonoids |
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