Figure 4.
Antibacterial activity of Innolysin Ec6 and Ec21 against E. coli. Average logarithmic reductions in the cell counts of different E. coli strains, after incubation with 0.2 mg/ml either of Innolysin Ec6 or of Ec21 for 30 min at 20 °C, compared to the cells treated with 20 mM HEPES–NaOH as a negative control. The average reduction was calculated based on triplicates of three independent experiments. *Significant reduction at P < 0.05.