Antimicrobial activity of Decalepis hamiltonii on some microbial isolates of spoiled vegetables and pathogenic microorganisms

The antimicrobial activity of root extracts of Decalepis hamiltonii were tested on microbes isolated from spoiled vegetables and on several pathogenic microorganisms by disc diffusion method. The aqueous, cold methanol, distillate and residual extracts of Decalepis hamiltonii were used. The aqueous extract showed zones of inhibition ranging from 5 mm to 17.5 mm, with maximum activity against Pseudomonas and least activity against several pathogens. The cold methanol, distillate, residual extracts showed zones of inhibition ranging from 6 mm – 21 mm, 6 mm – 23 mm, 6 mm – 27.5 mm respectively. Methanol control showed zones ranging from 0 mm – 20 mm.