Table 3.
Antibacterial activities of C. sorokiniana protein hydrolysates and peptide fractions
| Samples | Growth Inhibition Zone Diameter (GIZD)* | |
|---|---|---|
| Staphylococcus aureus | Escherichia coli | |
| CSHPe | 15 ± 1.0 | 13 ± 1.0 |
| HFPe5 | 15 ± 2.0 | 17 ± 2.0 |
| HFPe10 | 25 ± 4.0 | 14 ± 1.0 |
| CSHBr | − | − |
| HFBr5 | − | − |
| HFBr10 | − | − |
| CSHTh | − | − |
| HFTh5 | − | − |
| HFTh10 | − | − |
| Penicillin | + | 27 ± 2.0 |
C. Sorokiniana protein hydrolysate by the following: pepsin (CSHPe), bromelain (CSHBr) and thermolysin (CSHTh); and protein fractions: pepsin fraction <5 kDa (HFPe5), pepsin fraction <10 kDa (HFPe10), bromelain fraction <5 kDa (HFBr5), bromelain fraction <10 kDa (HFBr10), thermolysin fraction <5 kDa (HFTh5), and thermolysin fraction <10 kDa (HFTh10).
−, no inhibition detected; +, optimum inhibition
*
The values (in millimeters) represent averages ± standard deviations for triplicate experiments (n = 3).