Degradation kinetics of cyanidin 3-O-glucoside and cyanidin 3-O-rutinoside during hot, air and vacuum drying in mulberry (Morus alba L.) fruit: A comparative study based on solid food system
文献类型: 外文期刊
第一作者: Zhou, Mo
作者: Zhou, Mo;Chen, Qinqin;Bi, Jinfeng;Wang, Yixiu;Wu, Xinye
作者机构:
关键词: Mulberry fruit;Hot air drying;Vacuum drying;Anthocyanin;Degradation kinetic
期刊名称:FOOD CHEMISTRY ( 影响因子:7.514; 五年影响因子:7.516 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The aim of this study is to ascertain the degradation kinetic of anthocyanin in dehydration process of solid food system. Mulberry fruit was treated by hot air and vacuum drying at 60 and 75 degrees C. The contents of cyanidin 3-O-glucoside and cyanidin 3-O-rutinoside were determined by using high performance liquid chromatography. Kinetic and thermodynamic parameters were calculated for analysing the degradation characteristics. Model fitting results showed monomeric anthocyanin degradations were followed the second-order kinetic. Vacuum drying presented high kinetic rate constants and low t(1/2) values. Thermodynamic parameters including the activation energy, enthalpy change and entropy change appeared significant differences between hot air and vacuum drying. Both heating techniques showed similar effects on polyphenol oxidase activities. These results indicate the anthocyanin degradation kinetic in solid food system is different from that in liquid and the oxygen can be regarded' as a catalyst to accelerate the degradation. (C) 2017 Elsevier Ltd. All rights reserved.
分类号: TS2`TS201.2
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