the View the MathML source OD530 values increased significantly starting on day 2 at all the treatment concentrations, compared with the control, P < 0.05. The View the MathML source OD530 value reached the maximal points at the concentration 14 mL/L on day 6 with OD530 value of 0.18 ± 0.02, which was 2.24 times that for the control group