. 2014 Sep 27;52(7):4296–4305. doi: 10.1007/s13197-014-1520-6

Table 5.

Amino acid composition of collagen isolated from skin of Catla catla and Cirrhinus mrigala in three weight groups

Amino Acid	Catla catla			Cirrhinus mrigala			SE and Main effects
Amino Acid	1st	2nd	3rd	1st	2nd	3rd	Sp	W	Sp x W
Aspartic acid	31	35	37	29	30	31	0.16^***	0.20	0.26^**
Threonine	20	21	21	22	23	23	0.18^***	0.31^*	0.36
Serine	38	39	38	36	35	37	0.20^*	0.35	0.36
Glutamic acid	111	112	114	99	100	101	0.17^***	0.23^**	0.30^*
Glycine	164	164	165	180	181	182	0.15^***	0.25^**	0.26^**
Alanine	171	172	173	190	191	190	0.23^*	0.15^**	0.17^**
Valine	30	30	31	29	27	30	0.17^**	0.35	0.36
Methionine	16	18	19	18	18	20	0.21^*	0.22^*	0.22^*
Isoleucine	14	14	16	8	9	9	0.17^***	0.26	0.27
Leucine	88	87	89	92	93	93	0.16^***	0.27*	0.28^*
Tyrosine	6	5	6	4	5	4	0.13^***	0.20*	0.21^*
Phenylalanine	18	19	19	16	15	15	0.15^**	0.17^*	0.17*
Hydroxylysine	5	5	6	4	5	5	0.16^**	0.19^*	0.19^*
Lysine	46	47	49	45	47	46	0.24^*	0.27^**	0.30
Histidine	3	4	4	3	2	3	0.16^**	0.23^*	0.24^**
Arginine	67	67	65	47	47	46	0.49	0.50	0.50
Hydroxyproline	95	97	105	85	90	97	0.14^**	0.17^*	0.22
Proline	66	67	60	83	70	69	0.17^**	0.20^**	0.22^*
Imino acid	161	164	165	168	160	163	0.18^**	0.19^**	0.20^**

1st = weight group; 2nd = weight group 2; 3rd = weight group 3; w = Weight; Sp× w= Species× Weight interaction