金银花气调热泵干燥过程中绿原酸降解动力学研究

doi:10.7506/spkx1002-6630-201517002

食品科学

金银花气调热泵干燥过程中绿原酸降解动力学研究

罗磊1，杨彬1，张国庆2，朱文学1，刘云宏1，卫星2，康新艳1，屈政1

1.河南科技大学食品与生物工程学院，河南洛阳 471023；2.三门峡出入境检验检疫局，河南三门峡 472000

出版日期:2015-09-15 发布日期:2015-09-11

Degradation Kinetics of Chlorogenic Acid in Honeysuckle during Modified Atmosphere Heat Pump Drying

LUO Lei1, YANG Bin1, ZHANG Guoqing2, ZHU Wenxue1, LIU Yunhong1, WEI Xing2, KANG Xinyan1, QU Zheng1

1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China;
2. Sanmenxia Entry-Exit Inspection and Quarantine Bureau, Sanmenxia 472000, China

Online:2015-09-15 Published:2015-09-11

摘要/Abstract

摘要：

为探讨金银花气调热泵干燥过程中绿原酸含量及外观色泽的变化规律，本实验以金银花为研究对象，以N2为干燥介质置换空气降低设备中氧体积分数，研究温度、装载量和氧体积分数对绿原酸含量和L值的影响，建立绿原酸降解动力学模型。结果表明：达到干燥终点时，金银花的绿原酸含量和L值随干燥温度、装载量和氧体积分数的升高而降低；通过向一级反应动力学方程中的干燥时间t引入一个指数r，建立了气调热泵干燥过程中绿原酸降解动力学模型方程。该模型具有较好的拟合精度，可用来预测绿原酸的降解规律。

关键词: 金银花, 气调热泵干燥, 绿原酸, 降解动力学

Abstract:

This study investigated the changes in chlorogenic acid content and exterior color of honeysuckle during modified
atmosphere heat pump drying experiment. We used nitrogen as drying medium to reduce the oxygen concentration,
considered the influences of drying temperature, loading and oxygen volume fraction on chlorogenic acid content and L
value, and constructed the degradation kinetics model of chlorogenic acid. The results showed that chlorogenic acid content
and L value at the end of drying decreased with increasing temperature, load and oxygen volume fraction. Degradation
kinetics of chlorogenic acid did not follow zero order or first order reaction kinetics. The degradation kinetics model of
chlorogenic acid during modified atmosphere heat pump drying was established through introducing an exponent r related
to time t into the first order reaction kinetics equation. The developed model had better fitting accuracy and could be used to
predict the degradation pattern of chlorogenic acid.

Key words: honeysuckle, modified atmosphere heat pump drying, chlorogenic acid, degradation kinetics

中图分类号:

TS201.1

罗磊，杨彬，张国庆，朱文学，刘云宏，卫星，康新艳，屈政. 金银花气调热泵干燥过程中绿原酸降解动力学研究[J]. 食品科学, doi: 10.7506/spkx1002-6630-201517002.

LUO Lei, YANG Bin, ZHANG Guoqing, ZHU Wenxue, LIU Yunhong, WEI Xing, KANG Xinyan, QU Zheng. Degradation Kinetics of Chlorogenic Acid in Honeysuckle during Modified Atmosphere Heat Pump Drying[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201517002.

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金银花气调热泵干燥过程中绿原酸降解动力学研究

Degradation Kinetics of Chlorogenic Acid in Honeysuckle during Modified Atmosphere Heat Pump Drying

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