Characterization of fucoxanthin and fucoxanthinol esters in the Chinese surf clam, Mactra chinensis.
Fucoxanthin and fucoxanthinol fatty acid esters in the clam, Mactra chinensis, were characterized on the basis of 1H NMR and FAB-MS spectra. 1H NMR revealed that the hydroxy group at C-3 in fucoxanthin and fucoxanthinol was acylated. 3'-O-Acylated compounds such as fucoxanthinol 3'-ester or fucoxanthinol 3,3'-diester were not found in the clam. The fatty acids esterified with fucoxanthin and fucoxanthinol were identified as C24:6, C22:5, C22:6, C20:5, C20:0, C20:1, C18:0, C18:1, C16:0, C16:1, and C14:0 by FAB-MS data.
Maoka
Takashi
T
Research Institute for Production Development, 15 Shimogamo-morimoto-cho, Sakyo-ku, Kyoto 606-0805, Japan. maoka@mbox.kyoto-inet.or-jp
Fujiwara
Yasuhiro
Y
Hashimoto
Keiji
K
Akimoto
Naoshige
N
D000215:Acylation; D000818:Animals; D049872:Bivalvia / Q000737:chemistry*; D004952:Esters / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D016339:Spectrometry, Mass, Fast Atom Bombardment; D024341:Xanthophylls / Q000032:analysis / Q000737:chemistry*; D019207:beta Carotene / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry
D004952:Esters; D024341:Xanthophylls; D019207:beta Carotene; C025164:fucoxanthin; C483031:fucoxanthinol