SCREENING ANTIBACTERIAL ACTIVITY OF VIETNAMESE PLANT EXTRACTS AGAINST HUMAN PATHOGENIC BACTERIA

Objectives: Infectious diseases caused by bacteria are a leading cause of death worldwide. Hence, the objectives study aimed to evaluate antibacterial activity against five human pathogenic methanolic extracts from 66 plants collected Vietnam.
 Methods: The broth microdilution method was used determine minimum inhibitory concentration (MIC) methanol plant species bacterial strains.
 Results: In this study, all were active at least one train with MIC values ranging 24 2048 μg/mL. Twenty-five three Gram-positive (Bacillus cereus, Bacillus subtilis, and Staphylococcus aureus). Of these, Macaranga trichocarpa (Rchb. f. Zoll.) Mull. Arg. (Euphorbiaceae), Calophyllum inophyllum L. (Clusiaceae) Caryodaphnopsis baviensis (Lecomte) Airy Shaw (Lauraceae) exhibited highest (MIC =24–128 μg/mL), followed Betula alnoides Buch.- Ham. e × . D. Don (Betulaceae), Acronychia pedunculata (L.) Miq. (Rutaceae), Croton alpinus A. Chev. ex Gagnep. (Euphorbiaceae) =64–256 μg/mL). Furthermore, extract Rhus chinensis Mill. (Anacardiaceae) Annona reticulata (Annonaceae) potent two =32–64 μg/mL).
 Conclusion: Results reveal that Vietnam have highly bacteria. These results suggest Vietnamese may be rich source drugs.