The evaluation of antimicrobial actracts of hibiscus tiliaceus

Abstract

The antimicrobial activity from flower, leaf, and seed of Hibiscus tiliaceus was screened on Escherichia coli, Pseudomonas aentginosa, Bacillus subtilis and Staphylococcus aureus. Methanol, hexane, ethyl acetate and water were used as extractive solvent. The antimicrobial effect of the extract was tested using Disc diffusion method with concentration of 20 mg/ml for each extracts. Based on the result, it reveals that most of the extracts only gave positive result on Bacillus subtilis and Pseudomonas aeruginosa. All of the extracts were do not effective on Escherichia coli and Staphylococcus aureus as it only exhibited trace and no inhibition zone at all.