Analysis of fatty acids components in muscles of eight species of cardinalfishes (Apogonidae)
ZHUANG Haiqi*, LIU Jiangqin, ZHONG Yu, CUI Liao, LUO Hui
(Guangdong Key Laboratory for Research and Development of Natural Drugs, School of pharmacy, Analysis Center, Marine Medicine Resaerch Institute, The key Laboratory of R&D Marine Microorganism and Microalgae in the Beibu Gulf Rim,Guangdong Medical University, Zhanjiang 524023, China)
Abstract: The fatty acid contents of eight species of cardinalfishes were compared, and the fatty acid compositions were analyzed by cluster analysis, which could provide a reference for the nutritional evaluation of cardinalfishes. Eight species of cardinalfishes, including Apogon unicolor, Rhabdamia gracilis, Apogon fasciatus, Apogonichthyoides pseudotaeniatus, Ostorhinchus kiensis, Ostorhinchus aureus, Taeniamia fucata and Apogon cathetogramma were collected from the sea near Zhanjiang in autumn and winter. The fatty acids in their muscles were determined by gas chromatography. The results showed that the nutritive value of fatty acids in eight species of cardinalfishes were higher, with the contents of saturated fatty acids ranging from 33.22% to 42.07%, monounsaturated fatty acids ranging from 8.97% to 18.93%, and polyunsaturated fatty acids ranging from 38.66% to 50.96%. Among the polyunsaturated fatty acids, the content of ω-3 fatty acids ranged from 31.03% to 38.42%, and the content of functional fatty acids EPA+DHA ranged from 26.26% to 34.50%. The contents of EPA and DPA in all eight cardinalfishes was higher, and Apogon unicolor had the highest content of DPA (7.00%). Fatty acid cluster analysis showed that the fish of cardinalfishes could not be clustered among genera within the family, but could be clustered between families such as Mullidae.
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2020, Vol. 46 
