FIG. 4.

Synergistic effect of oregano and cranberry extracts on inhibition of urease. The plate medium was adjusted to pH 6.0. The total phenolic concentration was 0.05 mg/disk, and inhibition diameter was monitored after incubation at 37°C for 48 h. The control was a bacterial culture under the same conditions in which same volume of water instead of phytochemical was placed. Each experiment consisted of three replicates of various phytochemical concentrations. Each experiment was repeated three times. The error bars represent ±1 standard deviation from the mean. Bars with same letters are not significantly different. Statistical analysis was done by analysis of variance; P < 0.05.