Table 2. Antimicrobial activity of the cell free supernatant (CFS) of the Leuconostoc isolates against Escherichia coli MTTC 443 in spinach stored at 4°C for a period of 5 days represented as average Log10 CFU/mL of rinse of the different groups at different time points

Groups Log10 CFU/mL of rinse1) % of reduction over control2)
0 d 1 d 2 d 5 d 0 d (%) 1 d (%) 2 d (%) 5 d (%)
Control 7.29±0.10a,x 7.32±0.15a,x 7.41±0.13a,x 7.51±0.19a,x N/A N/A N/A N/A
CM17 CFS 7.16±0.05a,x 6.79±0.14bc,y 6.61±0.15b,y 6.52±0.16b,y 26.4 70.5 84.0 89.9
CM19 CFS 7.03±0.06a,x 6.90±0.08b,y 6.79±0.07b,y 6.82±0.04b,y 44.9 61.7 76.2 79.7
PM30 CFS 7.18±0.34a,x 6.67±0.17bc,y 6.45±0.62b,y 6.19±0.15b,y 23.5 77.7 89.0 95.2
PM32 CFS 6.97±0.06a,x 6.79±0.07bc,y 6.82±0.05b,y 6.56±0.09b,y 52.9 70.3 74.4 88.9
PM36 CFS 7.12±0.32a,x 6.38±0.01c,y 6.04±0.07b,y 5.94±0.04b,y 33.5 88.4 95.7 97.4
n=3, p<0.05.
Cells with different alphabets represent statistical difference.
represents statistical difference between the groups at a specific testing period whereas
represents statistical difference within a group over time.
The % of reduction represented for the antimicrobial treatment group indicates % reduction over the control at a specific testing time point.