Table 1. Amino acids composition (in %) of A. stellaris gelatin (skin) and commercial gelatin.

Amino Acid	A. stellaris gelatin (skin)	Commercial gelatin
L-Serine	4.42	2.18
L-Glutamic Acid	8.98	–
L-Phenylalanine	3.03	1.92
L-Isoleucine	1.24	1.13
L-Valine	3.25	1.60
L-Alanine	9.15	10.24
L-Arginine	10.57	8.95
L-Glycine	29.60	23.01
L-Lysine	3.50	2.80
L-Aspartic Acid	4.88	4.93
L-Leucine	2.62	–
L-Tyrosine	0.83	0.15
L-Proline	12.53	12.34
L-Threonine	4.00	2.87
L-Histidine	1.38	0.03

Notes.

A. stellaris skin gelatin was used in this study; commercial gelatin (Nurilmala, 2004).