Abstract
Two filamentous species of algae collected from GC University Lahore were tested against two bacterial
species. Extracts of algal species were prepared in three solvents, methanol, ethanol and acetone. Two different
concentrations (w/vol.) 1/10 g/ml and 1/100 g/ml were made in each of the above mentioned solvents. Extracts
were loaded on agar plates, containing test bacteria, Bacillus substilis and Streptococcus mutans. Methanol and
ethanol found to be the best solvents for making extracts that showed good zone of inhibition in bacterial species
maximum up to 2.05 cm than the acetone which was up to 0.7 cm. Methanolic and ethanolic extracts could be
the alternate of antibacterial agents as both showed results very close to the antibiotics used as control. The
mechanism of fate of microbial inhibition must be analyzed in later microbial and phycological researches
BASHARAT SADIQ, GHAZALA YASMEEN BUTT, MUHAMMAD AJAIB, ALI USMAN, NAZIM HUSSAIN. (2016) Evaluation of Antibacterial Competence of Cladophora glomerata and Lyngbya diguetii, Biologia – Journal of Biological Society of Pakistan, Volume 62 (I), Issue 1.
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