Table 1 Changes of muscle quality of silver carp during transportation

From: Comprehensive transcriptomic and metabolomic analysis provides insight into transportation stress effects on fish muscle quality

Transportation time

3 h

6 h

12 h

24 h

Proximate composition

 Moisture/%

80.45 ± 0.24a

80.56 ± 0.23a

80.80 ± 0.22a

80.92 ± 0.15a

 Crude protein/%

18.68 ± 0.26a

18.29 ± 0.02a

17.85 ± 0.22b

17.70 ± 0.26b

 Crude lipid/%

2.63 ± 0.29a

2.56 ± 0.21a

2.49 ± 0.28a

2.08 ± 0.29a

 Ash/%

1.11 ± 0.04a

1.13 ± 0.05a

1.16 ± 0.08a

1.19 ± 0.07a

Lactic acid and muscle glycogen

 pH

7.11 ± 0.07a

6.98 ± 0.08b

6.78 ± 0.09c

6.66 ± 0.10d

 LD /(mmol/g protein)

0.057 ± 0.004d

0.082 ± 0.010c

0.097 ± 0.007b

0.131 ± 0.006a

 GLY/(mg/g)

0.77 ± 0.05a

0.42 ± 0.03b

0.36 ± 0.02c

0.32 ± 0.03c

Physical properties

 Shear force

412.40 ± 14.62a

379.30 ± 12.35b

359.10 ± 12.95c

333.10 ± 11.99d

 L*

48.11 ± 1.48a

45.52 ± 0.79b

43.56 ± 0.78c

41.02 ± 0.56d

 a*

−0.20 ± 0.13c

0.37 ± 0.30ab

0.47 ± 0.17a

0.26 ± 0.24b

 b*

−1.83 ± 0.85a

−2.53 ± 0.72bc

−2.11 ± 0.64ab

−2.83 ± 0.41c

 W

48.07 ± 1.46a

45.45 ± 0.79b

43.52 ± 0.78c

40.95 ± 0.57d

 WHC

81.00 ± 1.87a

77.73 ± 1.32b

74.20 ± 2.98c

70.87 ± 2.17d

ATP and its related metabolites

 ADP/(mg/100 g)

11.58 ± 0.87a

9.68 ± 0.65b

9.11 ± 0.16bc

8.51 ± 0.53c

 AMP/(mg/100 g)

17.40 ± 0.80a

15.16 ± 0.56b

11.88 ± 0.38c

9.46 ± 0.59d

 IMP/(mg/100 g)

265.10 ± 0.41d

280.43 ± 1.04c

291.67 ± 1.17b

300.43 ± 1.46a

 HxR/(mg/100 g)

88.70 ± 1.01c

111.09 ± 0.37a

102.49 ± 0.73b

85.36 ± 0.79d

 Hx/(mg/100 g)

9.59 ± 0.62bc

9.20 ± 0.89c

10.40 ± 0.98b

11.52 ± 0.40a

 Total amount/(mg/100 g)

392.36 ± 3.61c

425.55 ± 3.33a

425.55 ± 3.32a

415.27 ± 3.67b

  1. LD lactic acid, GLY glycogen, WHC water holding capacity, L* lightness, a* redness, b* yellowness, W whiteness, ADP 5’-adenosine diphosphate, AMP 5’-adenosine monophosphate, IMP Inosine 5’-monophosphate, HxR inosine, Hx hypoxanthine. Different superscript lowercase letters in the same row indicate significant differences (p < 0.05).