Species Variations in the Proximate Composition, Amino Acid Profile, and Protein Quality of the Muscle Tissue of Grass Carp, Bighead Carp, Siberian Sturgeon, and Wels Catfish

Table 6

Essential amino acid content in muscle (g/100 g muscle) of grass carp, bighead carp, Siberian sturgeon, and wels catfish and the recommended daily intake for an adult man weighing 70 kg.

Amino acid	Recommended daily intake		Grass carp	Bighead carp	Siberian sturgeon	Wels catfish
	(mg/kg body weight)	(g/70 kg body weight)
Thr	6.5	0.46	0.88	0.79	0.80	0.80
Val	11.4	0.80	0.91	0.83	0.80	0.74
Ile	15.7	1.10	0.79	0.71	0.71	0.68
Leu	9.5	0.67	1.44	1.33	1.31	1.25
Tyr + Phe	12.1	0.85	1.33	1.24	1.29	1.15
Cys + Met	12.1	0.85	0.58	0.43	0.44	0.35
Try	2.9	0.20	0.56	0.51	0.30	0.31
Lys	9.4	0.66	1.82	1.63	1.65	1.52
∑EAA	79.6	5.59	8.31	7.47	7.3	6.8

According to Gawęcki [42].