Caffeine, trigonelline, chlorogenic acids and sucrose diversity in wild Coffea arabica L. and C-canephora P. accessions
Caffeine, trigonelline, chlorogenic acids and sucrose diversity in wild Coffea arabica L. and C-canephora P. accessions
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DOI：
10.1016/s0308-8146(01)00204-7
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发表时间：
2001-11-01
期刊：
影响因子：
8.8
通讯作者：
Noirot, M
中科院分区：
文献类型：
--
作者：
Ky, CL;Louarn, J;Noirot, M
人们对两种具有全球经济重要性的生咖啡豆进行了许多香气前体评估：阿拉比卡咖啡（Coffea arabica L.）和中实咖啡（Co a canephora P）。人们已努力对这两个品种的栽培品种进行表征。本研究的原创性在于展示来自埃塞俄比亚和肯尼亚的 C. arabiea（38 种基因型）野生种质和来自五个非洲国家（科特迪瓦、几内亚、刚果、喀麦隆和中非共和国）的 C. canephora（38 种基因型）野生种质的生化多样性。通过HPLC分析评估的生化香气参数为：(1)两种生物碱，咖啡因和葫芦巴碱，(2)绿原酸和(3)蔗糖。结果表明，这两个物种的所有化合物均表现出显着的加入差异。物种间平均含量比较证实，阿拉比卡咖啡含有更多的葫芦巴碱和蔗糖，而中果咖啡则含有更多的 CGA 和咖啡因。除葫芦巴碱和蔗糖外，C. canephora 的多样性高于 C. arabica。对于 C. canephora，结果表明：(1) 生物碱和蔗糖原产国的种质之间没有突出差异，(2) 3-CQA 含量允许将种质合并为两组。由爱思唯尔科学有限公司出版
Numerous aroma precursor evaluations have been undertaken with green coffee beans of both species of worldwide economic importance: Coffea arabica L. and Co a canephora P. Efforts have been made to characterise cultivars of these two species. The originality of this study is to present the biochemical diversity of wild accessions originating from Ethiopia and Kenya for C. arabiea (38 genotypes) and from five African countries (Cote d'Ivoire, Guinea, Congo, Cameroon and Central African Republik) for C. canephora (38 genotypes). The biochemical aroma parameters assessed by HPLC analysis were: (1) the two alkaloids, caffeine and trigonelline, (2) chlorogenic acids and (3) sucrose. Results reveal that the two species showed significant accession differences for all compounds. Between-species-average-content comparison confirms that C. arabica showed more trigonelline and sucrose and that C. canephora presented more CGA and caffeine. C. canephora diversity was higher than that of C. arabica, except for trigonelline and sucrose. For C. canephora, results showed that: (1) no differences were highlighted between accessions for countries of origin for the alkaloids and sucrose, and (2) the 3-CQA content allowed to accessions to be pooled into two groups. Published by Elsevier Science Ltd.