Abstract
Riboflavin in the serum of purchased bovine milk was decomposed by exposure to fluorescent light. The amount of photodecomposed riboflavin increased with the intensity of illumination. In the serum exposed to light at low intensity, photogenerated superoxide anion increase quantity, and added superoxide dismutase effectively suppressed the photodecomposition of riboflavin.
The obtained results suggest that the photodecomposition of riboflavin at low light intensity is associated with the photogenerated superoxide anion.
