| 苦丁茶化学成份研究——多酚类与咖啡碱和Vc含量 |
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| 引用本文： | 梁月荣,徐月荣,胡月龄,刘祖生.苦丁茶化学成份研究——多酚类与咖啡碱和Vc含量[J].浙江大学学报(农业与生命科学版),1992(2). |
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| 作者姓名： | 梁月荣 徐月荣 胡月龄 刘祖生 |
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| 作者单位： | 浙江农业大学茶学系，浙江农业大学茶学系，浙江农业大学茶学系，浙江农业大学茶学系 杭州 310029，杭州 310029，杭州 310029，杭州 310029 |
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| 摘 要： | 分析了苦丁茶多酚类总量、儿茶素组成、咖啡碱和维生素C含量.结果表明,苦丁茶含有少量的表儿茶素(EC)、表没食子儿茶素没食子酸酯(EGCG)和表儿茶素没食子酸酯(ECG),不含表没食子儿茶素(EGC)和( )-儿茶素( )-C],咖啡碱含量为0.0228～0.0436％,约为茶叶的1/100;维生素C含量为31.21～45.60mg/100g.在被测代谢物中,苦丁茶与茶叶具有不同的代谢类型.
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| 关 键 词： | 苦丁茶 大叶冬青 儿茶素 多酚类 咖啡碱 维生素C |
Studies on the chemical compositions of Kudingcha;Analysis of contents of polyphenols, caffeine and vitamine C. |
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| Liang Yuerong, Xu Yuerong, Hu Yueling, Liu Zusheng.Studies on the chemical compositions of Kudingcha;Analysis of contents of polyphenols, caffeine and vitamine C.[J].Journal of Zhejiang University(Agriculture & Life Sciences),1992(2). |
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| Authors: | Liang Yuerong Xu Yuerong Hu Yueling Liu Zusheng |
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| Abstract: | Composition of catechins and contents of polyphenols, caffeine and vitamine C were analysed by HPLC method. A very low content of epi-catechin (EC) , epi-gallocatechin gallate (EGCG) . epi-catechin gallate (ECG)was detected,but none of epi-galiocatechin(EGC)and (4-)-catechin((( )-C) in Kudingcha. The content of caffeine in Kudingcha was between 0. 0228% and 0. 0436% which was about 1% of that in green tea. The content of vitamine C in Kudingcha amounted to 31. 21mg/100g to 45. 6mg/100g. It is considered that the two species have different metabolic types in the determined substances, Kudingcha is a beverage plant with little caffeine. |
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| Keywords: | Kudingcha Ilex lalifolia Thumb t catechin polyphenols caffeine vitamine C |
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