. 2019 Dec 17;9:19306. doi: 10.1038/s41598-019-55845-w

Table 4.

Amino acid composition (mean ±SE) of hilsa of different size groups collected from Hooghly river system.

Amino acid	Group I	Group II	Group III	Group IV	Group V	Group VI	Group VII
Threonine**	4.09^b ± 0.09	4.66^b ± 0.01	3.12^a ± 0.05	2.43^a ± 0.07	4.67^b ± 0.51	4.7^b ± 0.12	3.12^a ± 0.05
Valine**	3.69^b ± 0.04	4.67^c ± 0.005	3.59^b ± 0.06	2.80^a ± 0.14	6.06^e ± 0.29	5.38^d ± 0.03	3.65^b ± 0.04
Methionine**	3.22^c ± 0.17	ND	0.10^ab ± 0.03	ND	ND	0.26^b ± 0.02	0.01^a ± 0.00
Isoleucine**	4.52 ± 0.31b	4.99^c ± 0.24	8.53^d ± 0.09	11.98^f ± 0.52	3.08^a ± 0.40	3.79^ab ± 0.05	10.21^e ± 0.09
Leucine**	12.86^a ± 0.34	14.69^a ± 0.37	22.43^b ± 0.24	32.22^c ± 1.39	13.00^a ± 0.86	11.49^a ± 0.36	30.52^c ± 2.84
Phenyl alanine**	5.07^d ± 0.12	4.78^cd ± 0.14	2.16^a ± 0.04	3.84^bc ± 0.61	3.82^bc ± 0.38	3.39^b ± 0.07	3.14^b ± 0.16
Histidine*	4.11^bc ± 0.14	2.71^a ± 0.005	4.4^d ± 0.94	3.02^ab ± 0.01	2.81^ab ± 0.28	2.33^ab ± 0.03	2.11^a ± 0.01
Lysine*	7.14^bc ± 0.52	5.90^ab ± 0.23	4.68^a ± 0.14	6.86^bc ± 0.07	6.18^bc ± 0.89	7.45^c ± 0.22	6.67^bc ± 0.21
Arginine**	16.53^f ± 0.21	10.95^e ± 0.82	4.13^bc ± 0.41	6.29^d ± 0.17	1.85^a ± 0.02	2.95^ab ± 0.32	4.97^cd ± 1.05
∑EAA**	61.21^c ± 0.020	53.34^b ± 1.54	53.12^b ± 1.43	69.40^d ± 1.03	41.45^a ± 3.62	41.73^a ± 1.02	64.37^cd ± 1.26
Aspartic acid**	4.44^ab ± 0.17	6.09^c ± 0.20	7.89^d ± 0.69	3.4^a ± 0.02	10.25^e ± 0.53	11.11^e ± 0.01	4.74^b ± 0.05
Serine**	2.07^ab ± 0.02	2.51^bc ± 6.90	2.41^bc ± 0.36	1.12^a ± 0.01	4.08^d ± 0.68	3.36^cd ± 0.06	1.60^ab ± 0.02
Glutamic acid**	3.11^a ± 0.25	6.85^b ± 0.03	10.54^c ± 0.47	4.22^ab ± 0.38	12.17^c ± 2.51	12.60^c ± 0.19	5.67^ab ± 0.18
Proline*	1.08^a ± 0.35	2.65^ab ± 0.57	0.56^a ± 0.23	3.88^b ± 1.49	0.66^a ± 0.19	1.14^a ± 0.68	4.19^b ± 0.11
Glycine*	23.04^c ± 0.20	5.14^c ± 0.65	7.62^a ± 0.53	12.23^b ± 0.01	13.13^b ± 0.59	12.44^b ± 0.07	11.31^b ± 0.47
Alanine**	3.36^ab ± 0.18	1.00^ab ± 0.11	14.55^c ± 0.45	2.48^a ± 0.17	14.56^c ± 1.87	14.01^c ± 0.52	5.46^b ± 0.35
Cysteine*	ND	2.08^ab ± 0.57	ND	ND	0.37^b ± 0.04	0.35^b ± 0.06	0.12^a ± 0.01
Tyrosine**	0.69^ab ± 0.06	0.89^bc ± 0.11	0.83^ab ± 0.15	0.99^bc ± 0.16	1.34^d ± 0.05	1.3^cd ± 0.06	0.54^a ± 0.06
∑NEAA**	37.78^ab ± 0.02	45.41^c± 1.79	44.38^d ± 0.92	28.30^a ± 1.13	56.51^e ± 3.65	56.28^e ± 1.02	33.62^b ± 1.24

**P < 0.01, *P < 0.05, ND-not detected, Means followed by different superscripts differ significantly from each other.