Isolation and identification of 2-hydroxyplectaniaxanthin from Rhodotorula aurantiaca
Date of Original Version
A new trihydroxyl carotenoid has been isolated from the yeast Rhodotorula aurantiaca (Saito) Lodder C.B.S. 317 and identified as 2-hydroxyplectaniaxanthin (3′,4′-didehydro,1′,2′-dihydro-β, ψ-caroten-2,1′,2′-triol). Its m.p., partition coefficient, Rf, extinction coefficient, ms and NMR spectra are reported. Since the hydroxyl group at C-2 of the β-ionone ring is unusual, a possible mechanism for the biosynthesis of this carotenoid has been proposed. © 1973.
I.-Shan, Liu, Lee Terence H., Henry Yokoyama, Kenneth L. Simpson, and Clinton O. Chichester. "Isolation and identification of 2-hydroxyplectaniaxanthin from Rhodotorula aurantiaca." Phytochemistry 12, 12 (1973): 2953-2956. doi:10.1016/0031-9422(73)80513-8.