Table 4. Effects of different treatments on TBARS values (mg malondialdehyde/kg) of ground pork during 9 days of refrigerated storage

Treatment	Storage time (days)
	1	3	5	7	9
UT	0.14±0.02Bb	0.23±0.02Ab	0.24±0.02Ad	0.23±0.02Ac	0.24±0.04Acd
HT	0.13±0.02Db	0.20±0.01Cb	0.25±0.02Bd	0.34±0.04Ab	0.23±0.01Ccd
SCT 1	0.13±0.02Cb	0.22±0.03BCb	0.29±0.11Bd	0.39±0.03Ab	0.28±0.07Bc
SCT 2	0.18±0.02Ba	0.25±0.07Bb	0.39±0.08Ac	0.36±0.05Ab	0.38±0.02Ab
SCT 3	0.18±0.04Ca	0.35±0.05Ba	0.61±0.04Aa	0.58±0.12Aa	0.38±0.02Bb
SCT 4	0.12±0.02Cb	0.22±0.03Bb	0.27±0.02Ad	0.23±0.04ABc	0.22±0.02Bcd
SCT 5	0.12±0.02Cb	0.23±0.01Bb	0.29±0.05Ad	0.21±0.03Bc	0.19±0.03Bd
SCT 6	0.14±0.01Cb	0.26±0.08Bb	0.47±0.08Ab	0.50±0.13Aa	0.54±0.00Aa
SCT 7	0.13±0.03Cb	0.25±0.04Bb	0.42±0.03Abc	0.38±0.02Ab	0.39±0.06Ab

UT: untreatment (control); HT: heat treatment (40°C for 2 h); SCT: supercritical CO₂ treatment (1, 35°C/17.2 MPa/2 h; 2, 40°C/17.2 MPa/2 h; 3, 45°C/17.2 MPa/2 h; 4, 40°C/17.2 MPa/0.5 h; 5, 40°C/17.2 MPa/1 h; 6, 40°C/13.8 MPa/2 h; 7, 40°C/20.7 MPa/2 h).
Different capital letters on the same row indicate significant differences between storage time for the same treatment (p<0.05).
Different lowercase letters in the same column indicate significant differences between treatments on the same storage time (p<0.05).
TBARS, thiobarbituric acid-reactive substances.