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三种葛根总黄酮提取工艺的比较及优化
引用本文:汤晓,朱建华.三种葛根总黄酮提取工艺的比较及优化[J].辽宁农业职业技术学院学报,2008,10(5):1-4.
作者姓名:汤晓  朱建华
作者单位:宁波职业技术学院,华丰学院,宁波,315800
摘    要:对葛根总黄酮的三种提取工艺进行了比较及优化。结果表明,乙醇回流提取的最佳工艺条件为乙醇浓度70%,料液比1:10,提取时间1h,提取温度80℃,最佳提取率为62.8%。超声提取的最佳工艺条件为乙醇浓度70%,料液比1:15,提取时间20min,超声温度60℃,最佳提取率为56.1%。微波辅助提取的最佳工艺条件为乙醇浓度60%,料液比1:20,微波处理时间40 s(3次),中高火处理,最佳提取率为85.7%。微波辅助提取的效果最好,具有快速、节能、提取率高等优点。

关 键 词:葛根  黄酮  乙醇回流提取  超声提取  微波辅助

The Optimization and Comparison of Three Extraction Technologies of Flavonoids from Pueraria Lobata
TANG Xiao,ZHU Jian-hua.The Optimization and Comparison of Three Extraction Technologies of Flavonoids from Pueraria Lobata[J].Journal of Liaoning Agricultural Vocation-Technical College,2008,10(5):1-4.
Authors:TANG Xiao  ZHU Jian-hua
Institution:(Department of Hua Feng, Ningbo Polytechnic College, Ningbo, 315500)
Abstract:This paper optimized three kinds of extraction technologies of flavonoids from Pueraria Lobata and compared them with each other. The results showed that the optimized conditions of ethanol - extracting were as fol- lows: 70% ethanol extracting at 80℃ for 1 h, and the ratio of material to solvent is 1:10, under whieh the extrae- tion rate was 62.8%. However, 85.7% extraction rate could be obtained by means of ethanol - extracting with microwave processing under mid - strong microwave power for 40s, extracted three times in 60% athanol, with the ratio of material to solvent 1:20. Meanwhile, the optimized conditions of ethanol - extracting with ultrasonie treatment were as follows: 70% ethanol extracting at 60~C for 20 min, and the ratio of material to solvent is 1:15, under which the extraction rate was 56.1%. In conclusion, microwave processing had the best effect, and it also had such advantages as fast, power saving and high extraction rate.
Keywords:Pueraria Lobata  flavonoids  ethanol-extracting  ethanol-extracting with microwave processing  ethanol-extracting with ultrasonic treatment
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