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| Analysis of Fatty Acid Composition in Muscle of Four Species of Lizardfishes (Synodontidae) |
| ZHUANG Haiqi1,2, LIU Jiangqin2, CUI Liao1,3, LUO Hui3,4 |
1. Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, China;
2. Chemistry Teaching and Research Section, Guangdong Medical University, Zhanjiang 524023, China;
3. Marine Medicine Resaerch Institute, Guangdong Medical University, Zhanjiang 524023, China;
4. The key Laboratory of Research & Development Marine Microorganism and Microalgae in the Beibu Gulf Rim, Guangdong Medical University, Zhanjiang 524023, China |
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Abstract Four species of lizardfishes, including Saurida elongate, Saurida undosquamis, Synodus jaculum and Trachinocephalus myops, were collected from Zhanjiang seas of Guangdong Province. Twenty-one fatty acids in muscle were determined by gas chromatography. The content of saturated fatty acid was 31.14%—42.16%, monounsaturated fatty acid was 11.73%—21.73%, and polyunsaturated fatty acid (PUFA) was 31.64%—55.32%. The contents of omega-6 and omega-3 fatty acids were 4.49%—9.77% and 22.61%—45.55%, respectively. The content of eicosapentenoic acid (EPA)+docosahexaenoic acid (DHA) was as high as 30.49% in Saurida undosquamis and 42.32% in Synodus jaculum, and these two species of fish had high nutritional value of fatty acids. The correlation analysis between the main fatty acids of four species of lizardfish showed that C14:0 and C16:1, C14:0 and C18:1, C16:0 and C22:5(ω-3), C16:1 and C18:1, C18:1 and C22:5(ω-3) were significantly positively correlated; C14:0 and C20:4(ω-3), C16:1 and C20:4(ω-3), C14:0 and C22:6(ω-3), C16:1 and C22:6(ω-3), C18:1 and C22:6(ω-3), C22:5(ω-3) and C22:6(ω-3) were significantly negatively correlated. Cluster analysis exactly divides 4 species of lizardfish in the family into 3 categories (genera).
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Received: 05 June 2019
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