Analysis and Evaluation of Nutritional Compositions of Dosidicus gigas and Onychoteuthis borealijaponicus okada
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Abstract:
Two species of squid（Dosidicus gigas and Onychoteuthis borealijaponicus okada）carcass were studied and evaluated for their nutritional components. The moisture content of Dosidicus gigas was significantly higher than that of Onychoteuthis borealijaponicus okada (P<0.05). Meanwhile the protein content, fat content, ash content of two kinds of squid carcass are similar. The contents of P, Zn, Cu in the carcass of Onychoteuthis borealijaponicus okada was similar to these in the carcass of Dosidicus gigas, and the content of Ca in the carcass of Onychoteuthis borealijaponicus okada was higher than that in the carcass of Dosidicus gigas. The content of total amino acid of Dosidicus gigasis was higher than that of Onychoteuthis borealijaponicus okada, as well as the content of ∑EAA/∑AA. Both of the two kinds of squid carcass were of high-quality protein according to the ideal model recommend by FAO/WHO. Glu with the maximum content was found in these two kinds of squid carcasses. According to AAS model, the amino acid indexes were more than 0.5. Eleven unsaturated fatty acids were found in Dosidicus gigas and eight were found in Onychoteuthis borealijaponicus okada. In addition, squid carcass had abundant EPA and DHA compared with other marine products.
