Effect of curry and mint leaf extracts on pH. The results of effect of curry and mint leaf extracts on pH are presented in Table 2. At the beginning of storage, the pH was not significantly (P > 0.05) different between control and the treatments. However, on the day 3, the pH was significantly (P < 0.05) higher in the control sample. This could be attributed to the greater numbers of aerobic bacterial multiplication in the control than their counter part treatments, although no microbiological study was carried out