TABLE 1.

Amino acid composition of the bioactive peptide fractions from oyster

Amino acid	Hydrophobicity value (kJ/mol)	Relative molecular mass (g/mol)	Amino acid content (g/100 g)
			PEP‐1	PEP‐2	TRYP‐2	MIX‐2
Asp	2.26	133.1	3.88	9.59	10.75	10.03
Thr b	1.84	119.1	1.91	3.84	3.79	3.76
Ser	0.17	105.1	2.16	3.89	4.56	3.87
Glu	2.30	147.1	6.07	13.18	13.84	13.08
Gly	0	75.1	2.25	5.64	5.97	5.63
Ala a	3.06	89.1	2.41	3.91	3.89	3.49
Cys	4.19	121.2	0.09	0.15	0.19	0.08
Val a , b	7.07	117.1	1.88	3.90	4.08	4.05
Met a , b	5.44	149.2	0.85	1.59	1.43	1.58
Ile a , b	12.43	131.2	1.58	3.44	3.72	3.95
Leu a , b	10.13	131.2	2.67	5.74	5.67	6.45
Tyr a	12.01	204.2	1.16	3.56	3.33	4.13
Phe a , b	11.09	165.2	0.93	3.10	2.81	3.76
Lys b	6.28	146.2	4.26	3.03	3.12	2.15
His	2.09	155.2	0.85	1.17	1.35	1.47
Arg	3.06	174.2	3.27	3.15	2.81	2.03
Pro a	10.88	115.1	1.53	5.74	6.11	5.61
Tau		125.15	0.19	0.48	0.37	0.21
Total amount of hydrophobic amino acid (g/100 g)			13.01	30.98	31.04	33.02
Grand average of hydrophobicity value Q (kJ/mol)			4.41	4.68	4.58	4.85

^aHydrophobic amino acids.

^bEssential amino acids.