Table 1.

Amino acid composition of porcine liver protein hydrolysates (g amino acids/100 g dry sample)

Amino acid	APLHd	PaPLHd	PePLHd	MPLHd
Asp	3.06	6.70	5.40	5.63
Glu	9.68	13.51	13.16	10.84
Cys	0.39	0.83	0.58	0.65
Ser	0.86	2.32	0.98	1.65
His	1.37	1.83	1.83	1.44
Gly	5.42	4.76	3.83	4.73
Thr	1.26	2.96	1.44	2.25
Arg	2.23	4.90	2.41	4.48
Ala	3.65	5.38	5.95	4.62
Tyr	0.57	1.53	2.01	1.08
Val	1.95	3.37	3.40	2.93
Met	0.67	1.18	1.16	1.40
Trp	0.22	0.65	0.45	0.44
Phe	1.59	2.80	2.59	2.32
Ile	1.31	3.34	2.96	2.66
Leu	2.37	5.32	4.69	4.48
Lys	2.95	6.23	4.59	4.60
Pro	2.25	2.60	2.60	2.13
TAAa	41.8	70.2	60.0	58.3
THAAb	19.4	29.4	27.6	25.7
TAAAc	3.75	6.81	6.88	5.28

^a TAA Total amino acids

^b THAA Total hydrophobic amino acids include Gly, Ala, Val, Met,Trp, Phe, Ile, Leu, Pro

^c TAAA Total aroma amino acids include Tyr, His, Trp, and Phe

^dFour PLHs hydrolysis at 12 h