Investigation of antibacterial and antifungal of Chabahar Costal Seaweeds extract (Sargassum and Gracilaria )

Peymani, J. (2012) Investigation of antibacterial and antifungal of Chabahar Costal Seaweeds extract (Sargassum and Gracilaria ). Masters thesis, University of Zabol.

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The widespread use of antibiotics caused resistant strains of microorganisms and increasing of worldwide antibiotic resistance. Hence the researches on new natural antimicrobial agents as new drugs are important. According to previous researches, some multicellular marine algae have significant antibacterial properties. In this study, antibacterial and antifungal effects of organic and aqueous extracts of Sargassum glaucescens and Gracilaria arcuata (collected from Chabahar’s coast) were tested on three strains of Gram-negative bacteria: E. coli, Proteus vulgaris, Vibrio cholerae and two strains of Gram-positive bacteria to L. mono-cytogenes and Staphylococcus aureus and two species fungal Aspergillus flavus and Candida albicans. Extracts was performed by immersion method. Antibacterial effects were investigated by the disk diffusion method and serial dilutions in tube to determine the minimum inhibitory concentration. The ethanolic extract of Gracilaria arcuata showed the highest impact on the Vibrio cholerae by significant differences with the antibiotic Neomycin business (P<0.05). The aqueous extract of algaes did not show any antibacterial and antifungal effect. Ethanolic extract of S. glaucescens and G. arcuata algaes has a significant antibacterial effect on L. mono-cytogenes, Vibrio cholerae, and E. coli and Staphylococcus aureus.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Sargassum glaucescens, Gracilaria arcuata, Antibacterial, Antifungal, Extract, Chabahar
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User: admin admin1 admin2
Date Deposited: 22 Jun 2016 08:46
Last Modified: 22 Jun 2016 08:46

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