| 正交试验法从茶叶中提取咖啡因的工艺研究 |
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| 引用本文： | 黄飞.正交试验法从茶叶中提取咖啡因的工艺研究[J].黑龙江八一农垦大学学报,2014,26(5):63-66. |
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| 作者姓名： | 黄飞 |
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| 作者单位： | 黄山学院化学化工学院,黄山,245041 |
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| 基金项目： | 安徽省大学生创新创业训练计划项目，安徽省优秀青年人才基金重点项目，黄山学院自然科学研究项目 |
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| 摘 要： | 从茶叶中提取天然咖啡因,以乙醇作为溶剂,利用正交试验法探究了料液比、超声时间、浸提温度、浸提时间、乙醇的浓度对产率的影响。试验结果表明,其最佳条件为:料液比为1∶18,超声时间为5 min,浸提温度为70℃,浸提时间为60 min,乙醇浓度为85%,咖啡因的提取产率可达3.74%。方法简单,易于操作,同时产品产率高、纯度好。
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| 关 键 词： | 茶叶 咖啡因 提取 正交试验 |
Study on Extracting Caffeine from Tea by Orthogonal Experiment |
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| Huang Fei.Study on Extracting Caffeine from Tea by Orthogonal Experiment[J].Journal of Heilongjiang August First Land Reclamation University,2014,26(5):63-66. |
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| Authors: | Huang Fei |
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| Institution: | Huang Fei (College of Chemistry and Chemical Engineering, Huang Shan University, Huang Shan 245041 ) |
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| Abstract: | Used ethanol as solvent extraction caffeine from tea,the ratio of solid to solution,ultrasonic time,extraction temperature,extraction time and ethanol concentration were studied by orthogonal experiment. The results showed that the optimum reaction conditions was follows：the ratio of solid to solution 1∶18,ultrasonic time 5 min,extraction temperature 70 ℃,extraction time 60 min,ethanol concentration 85%,the caffeine yield 3.74%. The method was simple,easy to operate,and the caffeine had the higher product yield and purity. |
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| Keywords: | tea caffeine extract orthogonal experiment |
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