Bile pigments in the bile on marine fish: Yellowtail, red sea bream, and flounder.

Abstract

Bile pigments in the bile of yellowtail, Seriola quinqueradiata, red sea bream, Pagrus major, and flounder, Paralichthys olivaceus, were analyzed by HPLC and TLC. In the biles of these three fish, ditaurobilirubin and biliverdin IXα were the predominant pigments. Bilirubin IXα glucuronides and bilirubin IXβ were present in the bile of red sea bream and yellowtail but scarcely present in the bile of flounder. Bilirubin IXα was detected only in the bile of red sea bream. These results are in accord with the previous reports, in which a diversity of bile pigment composition was demonstrated in some fish.