| 微波-超声波协同萃取银杏黄酮的工艺研究 |
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| 引用本文： | 唐仕荣. 微波-超声波协同萃取银杏黄酮的工艺研究[J]. 云南化工, 2007, 34(3): 13-16 |
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| 作者姓名： | 唐仕荣 |
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| 作者单位： | 徐州工程学院,食品工程学院,江苏,徐州,221008 |
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| 基金项目： | 江苏省教育厅高校自然科学研究计划项目（05KJD150205） |
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| 摘 要： | 以银杏叶为材料,研究了乙醇浓度、微波功率、微波处理时间、料液比、银杏叶粉碎颗粒大小以及微波-超声波协同作用对银杏黄酮提取效率的影响。结果表明微波处理,微波-超声波协同处理可以显著提高银杏黄酮的提取率。确定了最佳的微波处理条件:70%乙醇为萃取液,料液比1∶20,粉末颗粒80目,微波功率50W,微波处理时间4 m in,处理后水浴回流提取2 h所得提取液的黄酮提取率达到81.76%,比直接水浴提取提高了1.3倍,微波-超声波协同处理的黄酮提取率达到83.54%。
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| 关 键 词： | 银杏黄酮 提取 微波辅助萃取 超声-微波协同萃取 |
| 文章编号： | 1004-275X（2007）03-0013-04 |
| 修稿时间： | 2007-03-19 |
Technology on the Extraction of Flavonoids from Ginkgo Biloba Leaves by Microwave and Ultrasonic Wave Synergic Pretreatment |
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| Tang Shirong. Technology on the Extraction of Flavonoids from Ginkgo Biloba Leaves by Microwave and Ultrasonic Wave Synergic Pretreatment[J]. Yunnan Chemical Technology, 2007, 34(3): 13-16 |
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| Authors: | Tang Shirong |
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| Affiliation: | Department of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221008, China |
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| Abstract: | Flavonoids were extracted by microwave or microwave and ultrasonic wave synergic pretreatment from Ginkgo biloba leaves,and effect of ethanol concentration,microwave power,time,ratio of material to solvent and particulate size on extraction was discussed.Result showed that extraction efficiency was raised remarkably by microwave or microwave and ultrasonic wave synergic pretreatment,and the optimal conditions were selected as follows: 70% ethanol as the solvent,ratio of material to solvent as 1:20,particulate size as 80 screen mesh,microwave power as 50 W,microwave irradiation time as 4 min and then extraction for 2 h under water bath.The extraction efficiency was 81.76%,1.3 times than that of direct extraction under water bath,and the extraction efficiency was 83.54% by microwave and ultrasonic wave synergic pretreatment. |
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| Keywords: | ginkgo flavonoids extraction microwave -assisted extraction microwave and ultrasonic wave syaergic extraction |
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