Antimicrobial activity of some Vietnamese medicinal plants extracts

摘要

Antimicrobial activities of some Vietnamese medicinal plant extracts including?Premna integrifolia?L,?Terminalia nigrovenulosa, Pseuderanthemum palatiferum,?Streptocaulon juventas,?Eclipta alba, and?Solanum hainanense?were investigated. Almost all extracts had antimicrobial effects on the tested microorganisms, including?Bacillus subtilis,Staphylococcus aureus,?Lactobacillus brevis,?Escherichia coli,?Pseudomonas aeruginose,Candida albicans,?Saccharomyces cerevisiae,?Aspergillus niger, and?Penicillium cyclopium. Of these extracts, the methanol extracts exhibited higher antimicrobial activity levels compared to that of other extracts. The greatest activity was obtained with?T. nigrovenulosamethanol extracts, followed by the extracts of?P. nigrovenulosa?and?S. juventas. The results indicate that the methanol extracts of?T. nigrovenulosa,?S. juventas, and?P. nigrovenulosahave significant potential for use as traditional therapy. Further study may lead to a novel antimicrobial compound.