Table 3.
Physico-chemical parameter | Treatment | Zone of inhibition (mm) |
---|---|---|
Untreated control | 16 ± 0.11 | |
Temperature | 60 °C (30 min) | 16 ± 0.12 |
60 °C (60 min) | 14 ± 0.10 | |
80 °C (30 min) | 14 ± 0.22 | |
80 °C (60 min) | 14 ± 0.08 | |
100 °C (15 min) | 14 ± 0.14 | |
100 °C (30 min) | 13 ± 0.15 | |
100 °C (60 min) | 13 ± 0.15 | |
121 °C (15 min) | –* | |
pH | 2 | 10 ± 0.17 |
4 | 16 ± 0.11 | |
6 | 16 ± 0.04 | |
8 | 13 ± 0.24 | |
10 | – | |
Enzymes (1 mg/ml) | Proteinase K | – |
Pepsin | – | |
Trypsin | – | |
Lipase | 16 ± 0.12 |
Zone of inhibition (mm) of E20c was determined by using agar gel diffusion assay against S. enterica. The results are the mean ± SD of three independent experiments preformed in triplicates
–, No zone of inhibition observed