International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 9, Issue:6, June, 2020

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(6): 390-399

Comparative Antibacterial Activity of Some Selected Seaweed Extracts from Agadir Coastal Regions in Morocco
Lahbib Fayzi1, Latifa Askarne2, Ouafa Cherifi3, El Houssine Boufous4  and Khalil Cherifi1*
1Laboratory of Biotechnology and Valorization of Natural Resources
2Laboratory of Microbial Biotechnology and Plant Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
3Laboratory of Hydrobiology, Ecotoxicology, Sanitation and Global Changes, National Center for Studies and Research on Water and Energy, Cadi Ayyad University, Marrakech, Morocco
4Department of Biochemistry and Microbiology, Laval University,
Quebec City (Quebec), Canada
*Corresponding author

Seaweeds are rich sources of natural bioactive products. Their interesting biological activities contributed to the investigation of natural therapeutic compounds used in biomedical and pharmaceutical applications. In this study, methanolic extracts of four seaweeds collected from the Moroccan Atlantic coastline (Agadir) Bifurcaria bifurcata, Corallina elongata, Corallina officinalis and Ulva fasciata were investigated for antimicrobial activities using the disc diffusion and broth microdilution methods. The extract bioactivity was expressed as minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against four human pathogenic bacteria Staphylococcus aureus, Escherichia coli, Bacillus subtilis and Pseudomonas aeruginosa. The results indicated that among the algal samples screened, the methanolic extract of B. bifurcata and U. fasciata exhibited the highest potency against all pathogens tested, with MIC ranged from 0.11 to 3.75 mg/ml depending on the bacterial species. The lowest MIC and MBC values were recorded for methanolic extract of B. bifurcata against Bacillus subtilis (0.11 mg/ml, 7.50 mg/ml) and E. coli (0.23 mg/ml, 7.50 mg/ml). Therefore, the present findings suggest that local seaweeds, chiefly B. bifurcata may be considered as an interesting biological source of bioactive compounds and should be investigated for natural antibiotics to control some pathogenic bacteria strains such as E. coli and B. subtilis.

Keywords: Antibacterial activity, Seaweeds, Pathogenic bacteria, methanolic extract

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How to cite this article:

Lahbib Fayzi, Latifa Askarne, Ouafa Cherifi, El Houssine Boufous and Khalil Cherifi. 2020. Comparative Antibacterial Activity of Some Selected Seaweed Extracts from Agadir Coastal Regions in Morocco.Int.J.Curr.Microbiol.App.Sci. 9(6): 390-399. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.