Table 7.

Correlation among malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and drip loss, meat color, shear force of longissimus dorsi muscle in finishing pigs

Index	Drip loss 24 h	Drip loss 48 h	L* 45 min	a* 45 min	b* 45 min	L* 24 h	a* 24 h	b* 24 h	Shear force
pH45 min	−0.16	−0.37	−0.34	−0.21	0.12	−0.08	−0.40	−0.21	0.24
pH24 h	−0.52**	−0.25	−0.26	0.31	0.11	−0.11	0.66**	0.63**	−0.06
pH48 h	−0.30	−0.22	−0.40*	0.48*	0.23	−0.17	0.61**	0.58**	0.02
MDA	0.26	0.53**	0.48*	−0.31	−0.19	0.69**	−0.37	−0.32	0.73**
SOD	−0.11	−0.38	−0.43*	0.40	0.16	−0.12	0.19	0.47*	−0.27
CAT	−0.34	−0.40	−0.59**	0.37	0.18	−0.64**	0.41	0.26	−0.62*

Drip loss, n = 7–8 (correlation between drip loss and CAT, n = 7; otherwise n = 8); L*, lightness, n = 7–8 (correlation between L* and CAT, n = 7; otherwise n = 8); a*, redness, n = 7–8 (correlation between a* and CAT, n = 7; otherwise n = 8); b*, yellowness, n = 7–8 (correlation between b* and CAT, n = 7; otherwise n = 8); MDA, malondialdehyde content in longissimus dorsi muscle, n = 6–8 (correlation between MDA and shear force, n = 6; otherwise n = 8); SOD, superoxide dismutase activity in longissimus dorsi muscle, n = 6–8 (correlation between SOD and shear force, n = 6; otherwise n = 8); CAT, catalase activity in longissimus dorsi muscle, n = 5–7 (correlation between CAT and shear force, n = 5; otherwise n = 7); pH, n = 6–8 (correlation between pH and shear force, n = 6; otherwise n = 8).

^*0.01<p<0.05;

^**p<0.01.

Correlation analysis was performed by a Pearson’s linear regression test.