Paper Title
Antimicrobial Activity of Methanol and Ethyl Acetate Extracts of Three Medicinal Plants Belonging to Family Myrtaceae

The Methanol and Ethyl acetate leaf extracts of Syzygium tamilnadensis, Syzygium densiflorum and Eugenia candolleana showed significant antibacterial activity against Staphylococcus aureus, E.coli, Bacillus subtilis, Klebsiella pneumoniae and Enterococcus faecalis and antifungal activity against Candida albicans, Aspergillus niger, Aspergillus flavus and Trichoderma sp. at various concentrations ranging from (1.25, 2.5, 5mg/mL) by using agar well diffusion and Minimum Inhibitory Concentration (MIC). All the extracts showed various levels of activity on different test organisms. E.coli showed good zone of inhibition for methanol and ethyl acetate extracts of Syzygium densiflorum at 5.0mg/mL concentrations with 26 and 27mm. Whereas, fungal pathogens like Candida albicans showed good zone of inhibition for methanolic extracts of Syzygium densiflorum with 28mm at 5.0mg/mL concentration and Trichoderma sp. showed good inhibition for ethyl acetate extracts of Eugenia candolleana at 5.0mg/mL recorded with 25mm. All the plants showed good results at 5.0mg/mL concentration, as the concentration increased the zone of inhibition gradually increased. The minimum inhibitory concentration (MIC) of the extracts for bacterial strains ranges from 250g/L to1000g/L and for fungal strains it ranged from 120g/L to250 g/L. The results obtained suggest that Syzygium tamilnadensis, Syzygium densiflorum and Eugenia candolleana can be used in treating diseases caused by the test organisms.