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...

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Bibliographic Details
Published in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2005-09, Vol.69 (9), p.1786-1789
Main Authors: Arita, S.(Okayama Univ. (Japan)), Ando, S, Hosoda, H, Sakaue, K, Nagata, T, Murata, Y, Shimoishi, Y, Tada, M
Format: Article
Language:English
Subjects:
ADDITIF ALIMENTAIRE
ADITIVOS ALIMENTARIOS
Biological and medical sciences
carotenoid
CAROTENOIDE
CAROTENOIDES
CAROTENOIDS
Carotenoids - chemistry
Carotenoids - radiation effects
FOOD ADDITIVES
FOTOLISIS
Fundamental and applied biological sciences. Psychology
IRRADIACION
IRRADIATION
photodegradation
PHOTOLYSE
PHOTOLYSIS
RADIACION ULTRAVIOLETA
RAYONNEMENT ULTRAVIOLET
sulfide
Sulfides - chemistry
SULFURE
SULFUROS
SULPHIDES
ULTRAVIOLET RADIATION
Ultraviolet Rays
UVA
β-carotene
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Summary: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.
ISSN:0916-8451
1347-6947
DOI:10.1271/bbb.69.1786