Carotenoids in clams, Ruditapes philippinarum and Meretrix petechialis.
Carotenoids were investigated in two species of clams, Rudiapes philippinarum and Meretrix petechialis. Fucoxanthin 3-esters and fucoxanthinol 3-esters were found to be major components, along with crassostreaxanthin A 3-acetate, crassostreaxanthin A, crassostreaxanthin B 3-acetate, crassostreaxanthin B, halocynthiaxanthin 3'-acetate, halocynthiaxanthin, alloxanthin, diatoxanthin, diadinoxanthin, and heteroxanthin. 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 from fast atom bombardment-mass spectrometry (FAB-MS) data. Crassostreaxanthin A 3-acetate and crassostreaxanthin B 3-acetate were first isolated and completely characterized by spectroscopic data. Furthermore, possible metabolic pathways of fucoxanthin in clams were proposed.
Maoka
Takashi
T
Research Institute for Production Development, Sakyo-ku, Kyoto, Japan. maoka@mbox.kyoto-inet.or.jp
Akimoto
Naoshige
N
Murakoshi
Michiaki
M
Sugiyama
Keikichi
K
Nishino
Hoyoku
H
D000818:Animals; D049872:Bivalvia / Q000737:chemistry* / Q000145:classification; D002338:Carotenoids / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D013045:Species Specificity; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
D002338:Carotenoids