| 天然富硒绿茶醇溶性活性物质提取条件优化 |
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| 引用本文： | 潘文洁,汤斌,季长路,何静.天然富硒绿茶醇溶性活性物质提取条件优化[J].安徽机电学院学报,2009(3):31-33,78. |
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| 作者姓名： | 潘文洁 汤斌 季长路 何静 |
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| 作者单位： | 安徽工程科技学院生化工程系,安徽芜湖241000 |
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| 摘 要： | 以天然富硒绿茶为原料,采用超声波辅助提取醇溶性活性物质,通过单因素实验和正交试验优化了提取条件.结果表明最佳提取条件为：乙醇体积分数50%,料液比1∶25,提取温度60℃,时间2 h,超声波功率400W,提取得率为44.44%.制得的富硒绿茶活性物质化学组成为：硒1.03μg/g,茶蛋白31.09%,茶多酚53.22%,茶多糖13.56%.
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| 关 键 词： | 富硒绿茶 活性物质 提取 组成 |
Optimization of extracting ethanol-soluble active substance from natural se-enriched green tea |
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| PAN Wen-jie,TANG Bin,JI Chang-lu,HE Jing.Optimization of extracting ethanol-soluble active substance from natural se-enriched green tea[J].Journal of Anhui Institute of Mechanical and Electrical Engineering,2009(3):31-33,78. |
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| Authors: | PAN Wen-jie TANG Bin JI Chang-lu HE Jing |
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| Affiliation: | (Dept. of Bioch. Engn. ,Anhui University of Technology and Science, Wuhu 241000, China) |
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| Abstract: | Ethanol-soluble active substance from natural Se-enriched green tea were extracted with the aid of ultrasonic wave and the extraction conditions were optimized by single factor and orthogonal experi- ments. The results showed that the optimal extraction condition are. 50 % ethanol, solid to liquid ratio 1 ：25, temperute 60 ℃, extraction time 2 h and power of ultrasonic 400 w. The yield was 44.44~. The active substance under the optimized technic condition contained Selenium 1.03μg/g, polyphenol 24. 41 % ,protein 31.09 %and polysaccharide 13. 56 %. |
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| Keywords: | Selenium-enriched green tea active substance extraction composition |
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