Journal of Pure and Applied MicrobiologyVol. 9 No. 4

Antimicrobial Activity of Three Microalgae Isolated from Mediterranean Sea Coast, Egypt

R. Elkomy*1, I.B.M. Ibraheem2, M. Shreadah1, R. Mohammed3 and A. Ismael4

1Biotechnology Laboratory-National Institute of Oceanography and Fisheries-Alexandria, Egypt. 2Botany and microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt. 3Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Egypt. 4Choir of Oceanography, Department, Faculty of Science- Alexandria, Egypt.

Received on 25 September 2015 and accepted on 06 November 2015



Chloroform, acetone, ethanol, methanol in addition to water extract of three microalgae cyanobacteria (phormidiumformusum), green algae ( chlorella marina) and diatom (Navicula f. delicatula) isolated from Egyptian coast of the Mediterranean Sea, in Alexandria were evaluated for their antibacterial and anti-fungal activities against tested by agar well diffusion method for their antibacterial and antifungal agent production on various human and plant pathogenic bacteria(Staphylococcus aureus and MicrococusLuteus),three gram negative(Serratiamarcescens, Pseudomonas aeruginosa, Escherichia coli and unicellular fungus (Candida albicans). Data showed that some extracts recorded strong inhibitory activities as compared to standard antibiotics.

Keywords : Antibacterial, Antifungal, Marine microalgae, Mediterranean Sea.