Table 1.

The amino acid composition of ASC and PSC from blue shark skin.

Amino Acids	ASC	PSC
Glycine	392.44	387.12
Alanine	144.59	130.88
Proline	132.98	124.46
Hydroxyproline	80.45	98.28
Glutamic acid	69.23	71.50
Aspartic acid	36.73	40.51
Arginine	28.64	26.25
Leucine	24.44	13.83
Serine	21.75	26.25
Lysine	14.84	15.95
Phenylalanine	13.63	14.02
Methionine	10.17	12.03
Threonine	10.04	8.19
Histidine	5.39	6.65
Valine	7.61	8.38
Isoleucine	3.79	9.38