Reduction in photostability by the esterification of beta-cryptoxanthin.
Liposomes, in which beta-carotene, beta-cryptoxanthin, zeaxanthin, beta-cryptoxanthin palmitate or beta-cryptoxanthin acetate had been embedded, were irradiated by UVA, and the rate of degradation of each carotenoid was measured. There was no significant difference in the degradation rate between beta-carotene, beta-cryptoxanthin and zeaxanthin. The degradation rates of beta-cryptoxanthin palmitate and beta-cryptoxanthin acetate were faster than that of beta-cryptoxanthin, and the degradation rate of beta-cryptoxanthin palmitate was faster than that of beta-cryptoxanthin acetate.
Graduate School of Natural Science and Technology, Okayama University, Japan.
Shin
S
Arita
Kojiro
K
Otsuki
Ken-ichi
K
Osaki
Yoshiyuki
Y
Murata
Yasuaki
Y
Shimoishi
Mikiro
M
Tada
D002338:Carotenoids / Q000737:chemistry* / Q000528:radiation effects; D065366:Cryptoxanthins; D004952:Esters / Q000138:chemical synthesis / Q000737:chemistry / Q000528:radiation effects; D006586:Hexanes / Q000737:chemistry; D007700:Kinetics; D008081:Liposomes; D010777:Photochemistry; D012997:Solvents; D014466:Ultraviolet Rays; D024341:Xanthophylls / Q000737:chemistry* / Q000528:radiation effects; D019207:beta Carotene / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000528:radiation effects
D065366:Cryptoxanthins; D004952:Esters; D006586:Hexanes; D008081:Liposomes; D012997:Solvents; D024341:Xanthophylls; D019207:beta Carotene; D002338:Carotenoids