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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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

Int.J.Curr.Microbiol.App.Sci.2017.6(2): 1024-1037
DOI: http://dx.doi.org/10.20546/ijcmas.2017.602.115


Antimicrobial Properties of Sargassum spp. (Phaeophyceae) against Selected Aquaculture pathogens
Jonathan Mallillin Bolaños, Francis Nuestro Baleta and Jayson Domingo Cairel
Institute of Fisheries, Isabela State University, San Fabian, Echague, Isabela 3309, Philippines
*Corresponding author
Abstract:

The purpose of this study was to investigate the antibacterial and anti-fungal activities of four species Sargassum namely: Sargassum polycystum, Sargassum oligocystum, Sargassum crassifolium and Sargassum cristaefolium collected along the coastal areas of Diora-Zinungan Sta. Ana Cagayan, Philippines. Extracts of powdered seaweeds were prepared using sequential extraction with different organic solvents in order to increasing the polarity (Ethanol, n-hexane, dichloromethane and ethyl acetate and aqueous). Five fractions (Ethanol, n-hexane, dichloromethane ethyl acetate and aqueous) were examined for antimicrobial activity by using disc diffusion assay on thirteen (13) strains of aquaculture pathogens. The n-hexane, dichloromethane, ethyl acetate extracts displayed different antimicrobial activity against different aquaculture pathogenic bacteria and fungi whereas ethanolic extracts showed higher antimicrobial activity than aqueous extracts. The extracts of Sargassum sp. showed a significant antimicrobial activity against Gram-positive and Gram-negative as well as the fungus. Among the tested brown seaweeds, Sargassum polycystum exhibited the better antimicrobial activity that has potentially used as antimicrobial agent and as natural immunostimulant with aquaculture industry for the treatment of microbial diseases and improvement of the health status of commercially important aquaculture species.


Keywords: Brown seaweeds, Different extracts, Bacteria, Fungi.
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How to cite this article:

Jonathan MallillinBolaños, Francis NuestroBaleta and Jayson Domingo Cairel. 2017. Antimicrobial Properties of Sargassum spp. (Phaeophyceae) against Selected Aquaculture pathogens.Int.J.Curr.Microbiol.App.Sci. 6(2): 1024-1037. doi: http://dx.doi.org/10.20546/ijcmas.2017.602.115