Research Article

(-)-Epigallocatechin-3-O-Gallate Regulates Muscle Growth, Antioxidant Status, and Nutritional Composition of Juvenile Common Carp (Cyprinus carpio L.)

Table 2

Effects of dietary EGCG on muscle composition and physicochemical properties of common carp muscle (C. carpio L.).

ParametersDietary EGCG levels (g/kg)P-value
00.050.250.51ALQ

Dry matter (%)120.63 ± 0.8520.98 ± 0.1020.58 ± 0.1220.33 ± 0.1420.62 ± 0.320.8680.6240.988
Crude protein (% DM)282.26 ± 0.28c86.61 ± 0.47a83.59 ± 0.51bc84.18 ± 0.51b83.38 ± 0.84bc0.0030.9160.009
Crude lipid (% DM)34.75 ± 0.10a4.51 ± 0.06a4.56 ± 0.08a4.59 ± 0.03a3.94 ± 0.20b<0.001<0.0010.022
Crude Ash (% DM)48.22 ± 0.847.71 ± 0.988.17 ± 0.597.70 ± 0.417.07 ± 0.180.7480.3000.651
Cooking loss (%)517.41 ± 0.58a14.60 ± 0.67b16.08 ± 0.49ab14.72 ± 0.87b17.32 ± 0.51a0.0070.9700.002
Drip loss (%)621.60 ± 0.68a17.50 ± 0.71b18.65 ± 1.46b18.42 ± 0.21b21.34 ± 0.45a0.0160.8700.002
pH76.65 ± 0.06c6.83 ± 0.05bc6.89 ± 0.05ab6.85 ± 0.08ab7.05 ± 0.02a0.0110.0010.673
Lactate content (mmol/gprot)81.34 ± 0.02a1.33 ± 0.04a1.21 ± 0.04b1.26 ± 0.03ab1.11 ± 0.03c<0.001<0.0010.365
Hydroxyproline (μg/mg tissue)90.53 ± 0.02a0.51 ± 0.02ab0.55 ± 0.02a0.49 ± 0.02ab0.47 ± 0.01b0.0410.0300.151

1–4Values are means ± SEM (n = 3). 5–7Values are means ± SEM (n = 6). 8–9Values are means ± SEM (n = 9). One-way ANOVA followed by Duncan’s test was used to analyze the discrepancy among all the groups. Values in the same row with different superscripts represent statistically significant difference (). The P-values indicate a significantly linear or quadratic dose–response relationship (). Liner trend and quadratic trend were analyzed by polynomial contrasts (A, ANOVA; L, linear; Q, quadratic). EGCG was supplemented at 0, 0.05, 0.25, 0.5, or 1 g/kg.