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| Analysis and Evaluation of Nutritional Composition in Muscle of Hybrid Grouper Epinephelus akaara♀×E. lanceolatus♂ |
| WU Shuiqing1, LUO Huiyu1, ZHENG Leyun1, WU Huihuang2, LIN Kebing1, GE Hui1, JIANG Shuangcheng1, ZHANG Zhe1, QIU Fengyan3 |
1.Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries ResearchInstitute of Fujian, Xiamen 361013, China;
2.Fisheries College, Jimei University, Xiamen 361021, China;
3.Xiamen Xiao Deng Fisheries Science and Technology Co. Ltd., Xiamen 361104, China |
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Abstract Approximate nutrient compositions, and levels of amino acid and fatty acid in muscle were analyzed and evaluated in hybrid grouper Epinephelus akaara♀×E. lanceolatus♂ with body weight of (182.84±29.35) g by route methods, and the national standard in order to verify the nutritional characteristics of the hybrid grouper. It was found that the hybrid grouper had muscular moisture of (74.07±0.71) %, lipid content of (21.52±0.78) %, crude protein content of (4.03±0.15) % and crude ash content of (1.29±0.07) %. Seventeen amino acids were detected from the muscle, with the total quantity of (19.88±0.15) %, essential amino acids (EAA) content of (8.64±0.13) %, delicious amino acids (DAA) of (7.64±0.16) %, essential amino acid index (EAAI) of 85.19, and the amino acid composition ratio accorded with the standard of FAO/WHO. There were 17 main fatty acids detected in the muscle of hybrid grouper, saturated fatty acid (SFA) content of (27.63±1.15) %, monounsaturated fatty acid (MUFA) content of (22.75±1.22) %, and polyunsaturated fatty acid (PUFA) content of (32.59±1.90) %, especially DHA+EPA accounting for (19.27±1.27) % in total fatty acids. The finding indicates that hybrid grouper is a kind of fish with high nutritive value and a potential aquaculture candidate.
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Received: 11 March 2019
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