Acceleration effect of sulfides on photodegradation of carotenoids by UVA irradiation.
The photodegradation of carotenoids by UVA irradiation in the presence of sulfides was investigated. The sulfides accelerated the photodegradation of carotenoids. A larger number of sulfur atoms of coexistent sulfides was more favorable to the acceleration effect of sulfides on the photodegradation of beta-carotene, but the alk(en)yl group of sulfides was less favorable to the acceleration effect of sulfur compounds. The acceleration effect depended on light intensity, temperature, and the initial concentrations of beta-carotene and sulfide.
Arita
Shin
S
Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
Ando
Suguru
S
Hosoda
Hiroshi
H
Sakaue
Kazushi
K
Nagata
Tadahiro
T
Murata
Yoshiyuki
Y
Shimoishi
Yasuaki
Y
Tada
Mikiro
M
D002338:Carotenoids / Q000737:chemistry* / Q000528:radiation effects*; D010782:Photolysis; D013440:Sulfides / Q000737:chemistry*; D014466:Ultraviolet Rays
D013440:Sulfides; D002338:Carotenoids