CHLOROGENIC ACID COMPOSITION OF INSTANT COFFEES
CHLOROGENIC ACID COMPOSITION OF INSTANT COFFEES
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DOI：
10.1039/an9840900263
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发表时间：
1984-01-01
期刊：
影响因子：
4.2
通讯作者：
MACRAE, R
中科院分区：
文献类型：
--
作者：
TRUGO, LC;MACRAE, R
建立了速溶咖啡中绿原酸异构体的高效液相色谱分析方法。通过对现有化合物进行异构化制备异构体混合物，并根据已公布的紫外摩尔吸光系数进行定量，从而有助于对各组分进行鉴定。研究了一些萃取和净化技术，以确定回收所有异构体的最佳条件。所开发的方法被应用到广泛的市售速溶咖啡。
A method, based on high-performance liquid chromatography, is described for the determination of chlorogenic acid isomers in instant coffee. Identification of the individual components was assisted by the preparation of isomeric mixtures by the isomerisation of available compounds and quantification based on published ultraviolet molar absorptivities. A number of extraction and clearing techniques were studied to determine the optimum conditions for the recovery of all the isomers present. The developed method was applied to a wide range of commercially available instant coffees.