Isolation and identification of pigment substances in orange feet of Paphia textile  

作　　者：Hongbo Zhao Ziqiang Han Rui Yang Zhongqin Li Jing Zhang Yuan Li Xiande Liu 

机构地区：[1]Key Laboratory of Mariculture for the East China Sea,The Ministry of Agriculture and Rural Affairs of China,Fisheries College,Jimei University,Xiamen,361021,China [2]Third Institute of Oceanography,Ministry of Natural Resources,Xiamen,361005,China

出　　处：《Aquaculture and Fisheries》2024年第4期551-556,共6页渔业学报（英文）

基　　金：supported by the National Key Research and Development Program of China (No.2018YFD0901404).

摘　　要：Paphia textile is an economically important bivalve cultured in southeastern China.The feet,as the main edible part of P.textile,vary in color from white to orange.Previous studies have suggested that the orange feet of P.textile contain higher levels of carotenoids than the white feet,but the kinds of carotenoids are not known.The pigments identified in this study can facilitate further analysis of their underlying molecular mechanism and enable the breeding of P.textile with high carotenoid content.The pigments were extracted from the orange feet of P.textile by an acetone extraction method,and then,the extracted pigments were analyzed by liquid chromatography-mass spectrometry(LC-MS).Moreover,the MS analysis was carried out with an electrospray ionization(ESI)source in the positive(ESI+)and negative(ESI-)ion modes.A total of 47 substances were detected,including 9 terpenoids,7 amino acids and peptides,13 lipids,9 organic acids,2 types of vitamin A and 7 other substances.Furthermore,β-doradecin(3’-hydroxy-3,4-diketo-β-carotene)was identified as the main pigment in the feet.This is the first report of the presence ofβ-doradecin,a type of carotenoid,in bivalves.

关 键 词：Paphia textile FEET CAROTENOID Composition analysis β-doradecin 

分 类 号：S917[农业科学—水产科学]