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Monitoring the Antibacterial Activity of Hibiscus sabdariffa Extracts

Author

Listed:
  • Panaitescu Magda

    (Univesidad “Latina” de Panama, Panama, Rep. de Panama)

  • Lengyel Ecaterina

    („Lucian Blaga” University of Sibiu, Sibiu, Romania)

Abstract

This paper focuses on studying the antibacterial effect of Hibiscus sabdariffa extracts, a plant known in traditional medicine for its beneficial effects on the body. Hibiscus sabdariffa extracts were done in pure water, 50% ethyl alcohol, and 96% ethyl alcohol; the concentrations used to determine antibacterial activity were 1:1, 1:5, 1:10, 1:25, 1:50, noted cu 1, 2, 3, 4, 5. The antibacterial effect of the extracts was tested using the impregnated disk-diffusion method on bacteria Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 14028, Enterobacter clocae ATCC 13047, Klepsiella pneumoniae ATCC 13833, Staphylococcus aureus ATCC 29213, Yersinia enterocolitica ATCC 9610. We ascertained that the most efficient extracts were those obtained using 96% ethyl alcohol, 1:1 concentration on Escherichia coli ATCC 25922 and Enterobacter clocae ATCC 13047 strains, where the inhibitory action presented average values between 5.43 mm and 3.43 mm. In the case of Klepsiella pneumoniae ATCC 13833 and Yersinia enterocolitica ATCC 9610 strains, the extracts recorded minimum or zero values. The antibacterial activity of Hibiscus sabdariffa depended on their concentration, on the solvent used, as well as on the resistance of the bacteria under study to the bioactive compounds in them.

Suggested Citation

  • Panaitescu Magda & Lengyel Ecaterina, 2017. "Monitoring the Antibacterial Activity of Hibiscus sabdariffa Extracts," Management of Sustainable Development, Lucian Blaga University of Sibiu, Faculty of Economic Sciences, vol. 9(1), pages 31-34, June.
    • Handle: RePEc:blg:msudev:v:9:y:2017:i:1:p:31-34:n:4
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