Comparative Study of the Nutritional Composition of Wild and Farmed White-Spotted Conger, Conger myriaster
Comparative Study of the Nutritional Composition of Wild and Farmed White-Spotted Conger, Conger myriaster
Yongming Zhang1,2, Yuyu Wang2*, Jing Jia2, Sihe Zhang2, Xiaohua Guo3, Aihua Sun3, Hao Dong3, Peiqiang He4 and Xiefa Song1*
ABSTRACT
The proximate composition, amino acid, fatty acid and mineral elements of wild and farmed Conger myriaster muscle were compared. Results indicated that the lipid content of farmed fish was significantly higher, while moisture content was significantly lower than that of the wild fish (P<0.05). The contents of all essential amino acids (EAA), half essential amino acids (HEAA) and Tyr, Asp, Glu were significantly higher in farmed Conger myriaster than that in wild fish (P<0.05). The ratios of the WEAA/WTAA (39.92% vs 39.77%) and WEAA/WNEAA (84.29% vs 82.37%) were similar in farmed and wild Conger myriaster (P>0.05). n-3 polyunsaturated fatty acids (PUFAs), n-6 PUFAs and total PUFAs content were lower in wild than that in farmed Conger myriaster (P<0.05). Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) were higher in farmed than wild Conger myriaster (P<0.05). Farmed fish showed significant high content in K and Mg but low in Hg, As and Pb compared to wild fish (P<0.05). In a word, farmed Conger myriaster under investigation have high nutritional qualities and positive health benefits, it is a potentially healthier alternative to the wild Conger myriaster.
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