Comparison of Nutritional Values of Acaudina molpadioides, Holothuria nobilis, and Actinopyga miliaris
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Abstract:
The compositions of body wall, amino acid, fatty acid, polysaccharide as well as mineral and trace element contents of Acaudina molpadioides, Holothuria nobilis, and Actinopyga miliaris were analyzed and compared to assess their nutritional qualities. The three sea cucumbers shared similar characteristics with high protein and low lipid. Delicious amino acids (DAA), including glutamic acid, aspartic acid, glycine, threonine, and alanine, with the following contents: 61.6% for A.molpadioides, 58.1% for H. nobilis, and 59.7% for A.miliaris. A low lysine and arginine ratio ranging from 0.39 to 0.46 was observed in all species. A. molpadioides contained less saturated fatty acids (21.4%) and more unsaturated fatty acids (67.1%) than other two species, and arachidonic acid (C20:4) constituted most of the polyunsaturated fatty acids (PUFA). The three samples showed relatively high Fe (16.3 to 24.1 mg/kg) and Zn (11.7 to 19.0 mg/kg) contents but low As (0.58 to 0.66 mg/kg) and Cd (0.49 to 1.21 mg/kg) contents. The comparison revealed that the body walls of A. molpadioides contained higher nutritional values than H. nobilis and A. miliaris.
