暴露于荧光下的牛奶中核黄素的光降解。

Photodegradation of riboflavin in milks exposed to fluorescent light.

作者信息

Allen C, Parks O W

出版信息

J Dairy Sci. 1979 Sep;62(9):1377-9. doi: 10.3168/jds.S0022-0302(79)83431-1.

Abstract

Photodegradation of riboflavin in 50-ml samples of fluid milks exposed to fluorescent light (2690 lux) followed first-order reaction kinetics, and the reaction rate (s-1) averaged 1.86 x 10(-5) in skim milk and 1.47 x 10(-5) in whole milk. Additional evidence led us to conclude that photodegradation of riboflavin proceeds prior to the appearance of a light-induced off-flavor.

摘要

暴露于荧光（2690勒克斯）下的50毫升液态奶样品中核黄素的光降解遵循一级反应动力学，脱脂奶中的反应速率（s-1）平均为1.86×10-5，全脂奶中为1.47×10-5。更多证据使我们得出结论，核黄素的光降解在光诱导异味出现之前就已发生。