. 2023 Jul 12;98:106517. doi: 10.1016/j.ultsonch.2023.106517

Table 2.

The color properties of crayfish during storage at 4 °C.

Treatments	Storage time(d)
	0	2	4	6	8	10	12
L*
CK	42.27 ± 0.98^Aa	39.85 ± 0.59^ABa	41.62 ± 1.22^Ab	37.80 ± 1.41^Ba	34.68 ± 1.55^Ca	34.81 ± 1.62^Ca	29.63 ± 2.11^Da
U	44.93 ± 0.95^Ab	42.91 ± 0.97^ABb	40.55 ± 0.77^Cab	41.35 ± 1.05^BCb	34.65 ± 1.23^DEa	36.14 ± 1.24 ^Da	32.78 ± 0.98^Eb
P	44.62 ± 0.81^Ab	41.16 ± 0.88^Ba	40.51 ± 0.65^Bab	38.28 ± 0.67^Ca	38.28 ± 0.67^Cb	34.68 ± 0.56 ^Da	33.06 ± 0.99^Db
UP	41.34 ± 1.01^Aa	40.00 ± 1.11^ABa	39.12 ± 0.92^BCa	37.01 ± 0.68 ^Da	37.38 ± 0.79^CDb	35.60 ± 0.88 ^Da	36.12 ± 0.86^Dc
a*
CK	5.81 ± 0.31^Aa	7.06 ± 0.30^Ba	7.37 ± 0.66^Ba	7.55 ± 0.45^Ba	7.33 ± 0.74^Ba	8.59 ± 0.44^Ca	9.06 ± 0.35^Ca
U	6.27 ± 0.26^Aab	9.25 ± 0.46^Bb	9.25 ± 0.84^Bbc	10.39 ± 0.34^BCc	10.74 ± 0.88^Cc	11.09 ± 0.99^Cb	11.11 ± 0.63^Cb
P	7.69 ± 0.44^Ac	9.75 ± 0.28^Bb	8.83 ± 0.74^Bab	9.07 ± 0.64^Bb	8.94 ± 0.51^Bb	9.91 ± 0.65^Bab	9.38 ± 0.44^Ba
UP	6.50 ± 0.15^Ab	9.55 ± 0.51^Bb	10.51 ± 0.65^BCc	10.89 ± 0.88^Cc	11.69 ± 0.35^CDc	13.22 ± 0.83^Ec	12.86 ± 0.62^DEc
b*
CK	2.23 ± 0.08^Ab	2.08 ± 0.21^Aa	5.71 ± 0.05^Bc	4.75 ± 0.06^Ca	7.94 ± 0.44^Dc	7.23 ± 0.38^Dc	7.30 ± 0.44^Dab
U	2.41 ± 0.06^Ac	4.33 ± 0.32^Bc	4.86 ± 0.38^Ba	8.75 ± 0.04^Cc	6.13 ± 0.45^Db	5.76 ± 0.32^Da	7.45 ± 0.05^Eb
P	2.46 ± 0.10^Ac	3.81 ± 0.05^Bb	5.06 ± 0.09^Cb	6.38 ± 0.08^Db	5.02 ± 0.07^Ca	7.60 ± 0.06^Ec	7.13 ± 0.43^Ea
UP	2.03 ± 0.03^Aa	3.83 ± 0.06^Bb	6.73 ± 0.02^Cd	8.48 ± 0.10^Dc	7.52 ± 0.24^Ec	6.48 ± 0.31^Cb	7.38 ± 0.06^Eb
Net colour difference
CK	0.00 ± 0.00^Aa	2.73 ± 0.11^Ba	3.87 ± 0.06^Ca	5.42 ± 0.14 ^Da	9.62 ± 0.21^Ec	9.40 ± 0.09^Ea	14.00 ± 0.51^Fc
U	0.00 ± 0.00^Aa	4.08 ± 0.12^Bc	5.83 ± 0.14^Cb	8.37 ± 0.16^Dc	11.81 ± 0.33^Ed	10.57 ± 0.15^Fc	14.02 ± 0.44^Gc
P	0.00 ± 0.00^Aa	4.25 ± 0.15^Bc	5.00 ± 0.18^Cc	7.58 ± 0.17^Db	6.95 ± 0.18^Ea	11.41 ± 0.21^Fd	12.58 ± 0.53^Gb
UP	0.00 ± 0.00^Aa	3.79 ± 0.09^Bb	6.56 ± 0.20^Cd	8.92 ± 0.11^Dd	8.52 ± 0.15^Eb	9.89 ± 0.11^Fb	9.81 ± 0.28^Fa
Whiteness index
CK	41.94 ± 0.94^Aa	39.40 ± 0.85^Bab	40.88 ± 1.12^ABb	37.17 ± 0.99^Ca	33.80 ± 1.11^Dab	33.85 ± 1.12 ^Da	28.68 ± 1.46^Ea
U	44.52 ± 0.95^Ab	42.00 ± 2.11^Bb	39.65 ± 1.32^Bab	39.80 ± 1.22^Bb	33.50 ± 1.23^CDa	34.94 ± 1.43^Ca	31.46 ± 1.87^Dab
P	44.03 ± 1.11^Ab	40.24 ± 0.97^Bab	39.65 ± 1.51^BCab	37.29 ± 1.02^Ca	37.43 ± 0.98^Cc	33.50 ± 1.27 ^Da	32.04 ± 1.96^Dab
UP	40.94 ± 1.31^Aa	39.12 ± 0.87^Aa	37.86 ± 0.98^BCa	35.52 ± 1.01^CDa	35.86 ± 0.77^CDbc	33.95 ± 1.54 ^Da	34.43 ± 2.06^Db

The values are mean ± standard deviation (n = 3). Different uppercase letters in the same row and different lowercase letters in the same column are significantly different (p < 0.05).