A Comparison of Two Determination Methods for Studying Degradation Kinetics of the Major Anthocyanins from Blood Orange
文献类型: 外文期刊
第一作者: Cao, Shaoqian
作者: Cao, Shaoqian;Pan, Siyi;Lu, Qi;Xu, Xiaoyun;Liu, Liang
作者机构:
关键词: Blood orange;anthocyanins;degradation kinetics;RP-HPLC;pH-differential method
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The thermal degradation of cyanidin 3-(6"-malonyl)glucoside and cyanidin 3-glucoside,which are the two major anthocyanins in blood orange juice,have been investigated using the pH-differential method and RP-HPLC method,respectively.Similar results could be obtained when the degradation kinetics of cyanidin 3-glucoside were studied by either the HPLC method or the pH-differential method.However,contrary results were obtained in the case of cyanidin 3-(6"-malonyl)glucoside.The HPLC analysis indicated that cyanidin 3-(6"-malonyl)glucoside was labile to eliminate a malonyl moiety to form cyanidin 3-glucoside before disappearing during thermal treatment and showed a lower thermal stability than cyanidin 3-glucoside,whereas the result obtained by the pH-differential method actually reflected the content of both cyanidin 3-(6"-malonyl)glucoside and its degradation intermediate.This caused an overestimate of the stability of cyanidin 3-(6"-malonyl)glucoside.
分类号: S13
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