Proximate, mineral, amino acid composition and mineral safety index of Callinectes latimanus

The proximate, mineral and amino acid compositions as well as mineral safety index (MSI) of Callinectes latimanus were determined on dry weight basis. In the proximate values, crude fat was lowest at 0.87 g/100 g whereas carbohydrate was highest at 46.2 g/100 g but crude fibre was not detected. In the total energy contribution, carbohydrate value contribution was 68.7 % but only 2.82 % from crude fat. In the minerals composition, the following were highly concentrated: Ca, Mg, K, Na and P; Se, Pb, Zn, Mn, Co and Cu were low in values whereas Fe was moderately concentrated. In the mineral ratios, Na/K, Ca/P and Ca/Mg were high. The MSI showed that Ca, P, Na and Mg were all higher than the standard whereas Fe, Cu, Zn and Se were lower. Two acidic amino acids (Glu and Asp) were the highest concentrated amino acids and the two had equivalent values of 11.4 g/100 g protein each. Val was the most concentrated essential amino acid. Whilst the total amino acid was 94.5 g/100 g crude protein, non-essential amino acid was 55.9 g/100 g cp (59.2 %) and the essential amino acid was 42.6 g/100 cp (45.1 %). Highest group amino acid was neutral amino acid at 59.2 g/100 g cp (62.7 %). BV1/BV2 were 61.8/63.7 and              P-PER1/P-PER2 were 1.21/1.39 whilst EAAI was 1.14. Amino acid groups had the trend: Class             I > Class IV > Class VI > Class V > Class II > Class VII > Class III. In the amino acid scores: Cys (0.348) was limiting under whole hen’s egg comparison, Lys (0.464) was limiting in provisional essential amino acid scoring pattern and Lys (0.440) was limiting under pre-school child essential amino acid requirement with correction values of 100/34.8, 100/46.4, 100/44.0 respectively.