Table 1. Firmness, SSC, and TA of CO2- and/or ClO2-treated tomatoes according to storage conditions

0 day Cold storage (4°C) Room temperature storage (20°C)
7 days 14 days 14+3 days 3 days 7 days 13 days
Firmness (N)
Control 13.50±0.481)A2)a3) 11.09±0.35Ba 5.62±0.27Db 5.72±0.27Dc 9.18±0.34Ca 4.69±0.20Ea 4.48±0.21Eab
30% CO2 12.75±0.48Aa 8.96±0.42Bb 7.74±0.45Ca 7.14±0.36Ca 5.86±0.45Db 5.18±0.23DEa 4.55±0.17Ea
60% CO2 13.19±0.66Aa 10.61±0.61Ba 6.53±0.31Cb 6.08±0.31CDbc 9.58±0.42Ba 5.20±0.16Da 3.96±0.20Eb
30% CO2+ 10 ppm ClO2 13.95±0.59Aa 8.91±0.32Bb 8.17±0.51Ba 6.90±0.26Cab 8.51±0.52Ba 4.60±0.25Da 4.90±0.21Da
SSC (°Brix)
Control 4.80±0.00Bb 4.47±0.03Cc 5.57±0.07Aa 4.50±0.06Cc 4.47±0.03Cc 4.17±0.03Da 4.57±0.07Ca
30% CO2 4.60±0.17Bb 5.77±0.24Aa 4.70±0.15Bb 4.73±0.03Bab 5.77±0.24Aa 4.47±0.23Ba 4.47±0.07Ba
60% CO2 4.67±0.07ABb 4.70±0.12ABc 4.73±0.03Ab 4.60±0.06ABbc 4.70±0.12ABc 4.33±0.03Ca 4.47±0.07BCa
30% CO2+ 10 ppm ClO2 5.87±0.03Aa 5.20±0.06Bb 4.77±0.03CDb 4.83±0.03Ca 5.20±0.06Bb 4.30±0.00Ea 4.57±0.19Da
TA (%)
Control 0.59±0.03Bb 0.49±0.03Ca 0.34±0.01Db 0.36±0.01Da 0.75±0.03Aa 0.26±0.02Ea 0.23±0.01Ea
30% CO2 0.70±0.03Ab 0.42±0.02Ba 0.41±0.02Ba 0.31±0.01Cb 0.77±0.06Aa 0.29±0.01Ca 0.24±0.00Ca
60% CO2 0.86±0.02Aa 0.46±0.05Ba 0.37±0.02Cab 0.36±0.01CDa 0.82±0.03Aa 0.29±0.01DEa 0.22±0.01Ea
30% CO2+ 10 ppm ClO2 0.87±0.07Aa 0.43±0.01Ca 0.39±0.02Cab 0.34±0.01CDab 0.73±0.03Ba 0.29±0.01DEa 0.23±0.01Ea
Results are mean values±SD from three measurements (n=3).
Means followed by the same uppercase letter horizontally for each parameter do not differ significantly by Duncan’s multiple range test at p<0.05.
Means followed by the same lowercase letter vertically for each parameter do not differ significantly by Duncan’s multiple range test at at p<0.05.