. 2017 Aug 2;54(10):3268–3277. doi: 10.1007/s13197-017-2773-7

Table 3.

Color parameters (L*, a*, b*, ∆E*) of rainbow trout fillets (n = 5), after treatment by nisin broth (CB-N) and control broth (CB), during storage time (vacuum packaged, 4 °C) (i); multiple mean comparisons test results, to test the significance of difference caused by two factor (nisin treatment and time storage) (ii)

	Storage time (days)
	0	1	5	12	21
(i)
L*
CB	48.44^a	50.10^ab	50.89^ab	57.77^c	57.25^c
CB-N	51.02^ab	49.69^ab	48.89^ab	52.18^b	50.35^ab
a*
CB	1.66	2.21	2.85	3.35	3.61
CB-N	2.57	2.70	3.27	2.69	3.21
b*
CB	9.88^ab	8.68^a	8.69^a	10.21^ab	11.34^b
CB-N	11.19^b	11.07^b	10.25^ab	9.78^ab	9.82^ab
∆E*
CB	^–	4.03^a	5.19^b	9.84^c	9.44^c
CB-N	^–	4.49^ab	5.06^b	5.17^b	4.36^ab

Factor	F sign.
Factor	L*	a*	b*	∆E*
(ii)
Treatment	16.90**	0.16 n.s.	2.67 n.s.	2.5 n.s.
Time	9.00**	1.40 n.s.	1.03 n.s.	4.0*
Treatment × time	5.24**	0.57 n.s.	2.99*	10.1**

Values with different letters results significantly different (LSD test, p < 0.05); F, Fisher test value; sign., significance level: *** p < 0.001; ** p < 0.01; * p < 0.05; n.s., no significance