| 茶叶中提取咖啡因的回收方法的比较 |
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| 引用本文： | 李忠瑞,王斌,张琦红,张汝君,林玲,俞群娣.茶叶中提取咖啡因的回收方法的比较[J].安徽农业科学,2010,38(29):16208-16209. |
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| 作者姓名： | 李忠瑞 王斌 张琦红 张汝君 林玲 俞群娣 |
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| 作者单位： | 浙江海洋学院食品与药学学院,浙江舟山,316004;浙江海洋学院食品与药学学院,浙江舟山,316004;浙江海洋学院食品与药学学院,浙江舟山,316004;浙江海洋学院食品与药学学院,浙江舟山,316004;浙江海洋学院食品与药学学院,浙江舟山,316004;浙江海洋学院食品与药学学院,浙江舟山,316004 |
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| 基金项目： | 浙江省自然科学基金资助项目(Y2080579); 浙江海洋学院校级重大课题资助项目(21135030107) |
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| 摘 要： | 目的]优选茶咖啡因提取方法。方法]采用真空旋转蒸干仪替代传统的溶剂回收和焙炒方法,并以提取咖啡因产量和流程所需时间为指标,考察了2种方法的优劣。结果]体积分数为95%乙醇提取的茶咖啡因粗提液,55℃旋蒸10min,再将温度上升至85℃旋蒸10min可得咖啡因粗提粉末。结论]改进方法操作简单,可在保证提取率的情况下,大大节省工作时间。
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| 关 键 词： | 咖啡因 改进方法 旋转蒸发仪 |
Comparison of the Recovery Method in the Extract of Caffeine from Tea |
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| LI Zhong-rui et al.Comparison of the Recovery Method in the Extract of Caffeine from Tea[J].Journal of Anhui Agricultural Sciences,2010,38(29):16208-16209. |
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| Authors: | LI Zhong-rui |
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| Institution: | LI Zhong-rui et al(Institute of Food , Pharmacy,Zhejiang Ocean University,Zhoushan,Zhejiang 316004) |
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| Abstract: | Objective] The extract method of the caffeine from tea was preferred.Method] The traditional method was replaced by the dryness instrument of vacuum rotary evaporation in solvent recovery and roasted method,and the two-method was compared through the investigation of the output of caffeine and consuming time,which was thought as the indicator in the process of its extract.Results] The crude caffeine powder could be recovered from the crude extract of the caffeine from tea with 95% volume under the operat... |
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| Keywords: | Caffeine Improvement Rotary evaporator |
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