Effects of high pressure processing on the copigmentation reaction of pelargonidin-3-glucoside and catechin

文献类型： 外文期刊

第一作者： Zou, Hui

作者： Zou, Hui;Ma, Yan;Liao, Xiaojun;Wang, Yongtao;Zou, Hui;Ma, Yan;Liao, Xiaojun;Wang, Yongtao;Zou, Hui;Ma, Yan;Liao, Xiaojun;Wang, Yongtao;Zou, Hui;Ma, Yan;Liao, Xiaojun;Wang, Yongtao;Ma, Yan

作者机构：

关键词： Pelargonidin-3-glucoside; Catechin; Copigmentation; High pressure processing

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）

ISSN： 0023-6438

年卷期： 2019 年 108 卷

页码：

收录情况： SCI

摘要： The solution absorbance ratios were determined to investigate the effects of high pressure processing on the copigmentation reaction of pelargonidin-3-glucoside and catechin. The theoretical spectra and molecular dynamic simulation were used to calculate the catechin/anthocyanin complex concentration, explore the intrinsic relationship between complex structure and absorbance. Results showed that when interacted with catechin at pH 1.5, the catechin/flavylium had the molar absorption coefficient of 1.78 times at 520 nm. Higher catechin concentration increased the solution absorbance about 1.3 times at pH 3.6 (100, 300, 500 MPa; 60 degrees C); high pressure processing could significantly accelerate the copigmentation rates at pH 1.5, 25 degrees C with the ratio of 10:1, and 60 degrees C with the ratio of 1:1. The solution absorbance at 60 degrees C was about 1.27 times of the corresponding ones at 20 degrees C (catechin/anthocyanin ratio of 10:1; 300 and 500 MPa). Higher catechin concentration, pressure and temperature could accelerate the copigmentation reactions.

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