Publication: Investigation of antimicrobial activity of 13 Thai medicinal plants against bacteria and fungi
Issued Date
2017-09-01
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ISSN
09737510
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2-s2.0-85031105984
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Pure and Applied Microbiology. Vol.11, No.3 (2017), 1351-1356
Suggested Citation
Nisarat Siriwatanametanon, Wanwisa Dodgson, Jolyon L.A. Dodgson Investigation of antimicrobial activity of 13 Thai medicinal plants against bacteria and fungi. Journal of Pure and Applied Microbiology. Vol.11, No.3 (2017), 1351-1356. doi:10.22207/JPAM.11.3.15 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/41733
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Title
Investigation of antimicrobial activity of 13 Thai medicinal plants against bacteria and fungi
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Abstract
Thirteen medicinal plants used in Thai traditional medicine for the treatment of inflammatory diseases were screened for in vitro antibacterial and antifungal activities. The agar disc diffusion method was employed against five strains of bacteria (Bacillus cereus, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi) and four strains of fungi (Candida albicans, Candida tropicalis, Candida glabrata and Candida guilliermondii). The 13 plants were extracted with methanol and the antimicrobial results were evaluated as the diameter of the inhibition zone of microbial growth. The results showed that the extract with the greatest activity against the gram-positive bacteria was Garcinia mangostana (peri-carb). The extract with the greatest activity against the gram-negative bacteria was Psidium guajava (leaves). The extracts with the greatest activity against Candida was Psidium guajava (leaves) and Allium sativum (bulbs). The results support the ethnopharmacological uses of the tested plants, especially G. mangostana, P. guajava and A. sativum.