Antimicrobial activity of the crude methanolic extract
The activity of crude methanolic extracts from J. curcas fruit on seven plant disease bacteria were evaluated by Disc diffusion method and Broth micro-well dilution method. The results showed that the extract indicated the potencies of antimicrobial activity against six plant disease bacteria including P. putida, P. syringae pv. sesami, X. campestris, X. campestris pv. glycines, X. campestris pv. vescicatoria and R. solanacearum as shown in Table 1. This extract exposed antimicrobial activity effect against six plant disease bacteria with inhibition zone in the range of 8.0 ± 0.0 to 13.7 ± 0.6 mm and moderate antimicrobial activity with MIC value at 214.29 ± 0.00 mg/mL. The instance of antimicrobial activity of this extract against some tests bacterial strain including P. putida and X. campestris pv. glycines were shown in Fig. 2.