| 苦茶Camellia assamica var kucha Chang et Wang的嘌呤生物碱 |
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| 引用本文： | 叶创兴,林永成,苏建业,宋晓虹,张宏达.苦茶Camellia assamica var kucha Chang et Wang的嘌呤生物碱[J].中山大学学报(自然科学版),1999(5). |
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| 作者姓名： | 叶创兴 林永成 苏建业 宋晓虹 张宏达 |
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| 作者单位： | 中山大学生命科学学院!广州510275(叶创兴，张宏达)，中山大学化学与化学工程学院(林永成，苏建业，宋晓虹) |
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| 摘 要： | 用重量法和柱层析法从苦茶Ｃａｍｅｌｌｉａ ａｓｓａｍｉｃａ ｖａｒｋｕｃｈａ Ｃｈａｎｇ ｅｔ Ｗａｎｇ 的嫩梢中分离出３ 种嘌呤生物碱， 经薄层层析、熔点测定、元素分析、核磁共振和质谱等对其结构的测定，鉴定为咖啡碱、１ ， ３ ， ７ ， ９四甲基尿酸和可可碱， 其百分含量分别为０８８％ ， ０８４ ％ 和０２９ ％ ． 样品水提物经氯仿萃取后直接由高压液相色谱分析， 测得苦茶含咖啡碱１９３２ ９％ ，四甲基尿酸１２９４ １ ％ ， 可可碱０５８５ ５ ％ ， 茶叶碱００１２ ８％ ． 这是茶组植物中嘌呤生物碱新的分布模式
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| 关 键 词： | 苦茶CamelliaassamicavarkuchaChangetWang 嘌呤生物碱 1 3 7 9-四甲基尿酸 咖啡碱 |
Purine Alkaloids in Camellia assamica var. kucha Chang et Wang |
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| YE Chuang xing,LIN Yong cheng,SU Jian ye,SONG Xiao hong,ZHANG Hong da.Purine Alkaloids in Camellia assamica var. kucha Chang et Wang[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1999(5). |
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| Authors: | YE Chuang xing LIN Yong cheng SU Jian ye SONG Xiao hong ZHANG Hong da |
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| Abstract: | Purine alkaloids in Camellia assamica var. Kucha Chang et Wang were investigated by extraction combined with silica gel column chromatography. Three products were isolated. Product A and C were determined as caffeine and theobromine by TLC and melting point compared with standards. The structure of product B were determined by MS and 1HNMR, the element analysis and melting point for 1,3,7,9 tetramethyluric acid.The purine alkaoids were consisted of caffeine, 1,3,7,9 tetramethyluric acid, theobromine and theophylline in the leaves of C.assamica var. kucha , and their content was 1 932 9%, 1 294 1%, 0 585 5% and 0 012 8% respectively by HPLC.The distribution of new type of purine alkaloids and such high content of tetramethyluric acid in wild tea tree resources is firstly reported. |
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| Keywords: | camellia assamica var kucha dominant pruine alkaloid 1 3 7 9 tetramethyluric acid caffeine |
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