臭氧降解玉米中黄曲霉毒素B1效果及降解动力学

食品科学 ›› 0, Vol. ›› Issue (): 0-0.

• 基础研究 • 下一篇

臭氧降解玉米中黄曲霉毒素B1效果及降解动力学

罗小虎¹,陈正行²

1. 江南大学食品学院
2. 江南大学粮食发酵工艺与技术国家工程实验室

收稿日期:2014-10-05 修回日期:2015-06-11 出版日期:2015-08-15 发布日期:2015-08-17
通讯作者: 罗小虎 E-mail:xh06326@gmail.com
基金资助:
公益性行业（粮食）科研专项;公益性行业（农业）科研专项;国家科技支撑计划;国家自然科学基金“大豆球蛋白亚基组分和空间构象与表面疏水性构效关系研究”

Effects and kinetics of ozone-degradation of aflatoxin B1 in corn

Xiaohu Luo¹,

Received:2014-10-05 Revised:2015-06-11 Online:2015-08-15 Published:2015-08-17
Contact: Xiaohu Luo E-mail:xh06326@gmail.com

摘要/Abstract

摘要： 以AFB1污染的玉米为实样，研究臭氧对玉米中AFB1的降解效果。结果表明，AFB1降解率随着臭氧浓度和处理时间的增加而显著提高；水分含量为20.37%的玉米经90 mg/L的臭氧处理40 min后，AFB1含量由77.6 μg/kg降低到21.42 μg/kg，降解率达72.4%。臭氧降解AFB1的动力学模拟表明，臭氧降解AFB1符合一级动力学模型。玉米中AFB1降解速率按以下次序递减：K90 mg/L>K65 mg/L>K40 mg/L。臭氧降解AFB1的动力学参数中的动力学方程、反应速率常数、相关系数和半衰期，可为最优地控制臭氧反应条件提供理论和实践参考。

关键词: 黄曲霉毒素B1, 玉米, 臭氧, 降解, 动力学

Abstract: With increasing ozone concentration and treatment time, the degradation rates of AFB1 in corn were evidently elevated. The AFB1 contents in corn with the moisture contents of 20.37% plummeted from 77.6 μg/kg to 21.42 μg/kg after 40 min of treatment with 90 mg/L ozone, viz., the degradation rates were 72.4%. AFs in different raw materials were degraded by ozone all following first order kinetics. The degradation rates of AFs in corn followed the descending orders of K90 mg/L>K65 mg/L>K40 mg/L. Kinetics parameters, such as kinetic equations, reaction rate constants, correlation coefficients and half-life periods, provided valuable evidence for controlling ozonation under optimum conditions and for clarifying the influences of ozonation on corn.

Key words: Aflatoxin B1, corn, ozone, degradation, kinetics

中图分类号:

TS207.7

罗小虎陈正行. 臭氧降解玉米中黄曲霉毒素B1效果及降解动力学[J]. 食品科学, 0, (): 0-0.

Xiaohu Luo. Effects and kinetics of ozone-degradation of aflatoxin B1 in corn[J]. FOOD SCIENCE, 0, (): 0-0.

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臭氧降解玉米中黄曲霉毒素B1效果及降解动力学

Effects and kinetics of ozone-degradation of aflatoxin B1 in corn

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