title: Photodegradation of riboflavin in milks exposed to fluorescent light.
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.
mesh_terms: D000818:Animals; D002417:Cattle; D005453:Fluorescence; D007700:Kinetics; D008892:Milk / Q000032:analysis / Q000528:radiation effects* / Q000592:standards; D010777:Photochemistry; D012256:Riboflavin / Q000528:radiation effects*
chemical_list: D012256:Riboflavin