The effect ethanolic extract of Nostoc linkia algae on growth of some bacterial species which isolated from waste water

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11/5/2014 8:50 AM

The effect ethanolic extract of Nostoc linkia algae on growth of some bacterial species which isolated from waste water



Ahmed Aidan Al- Hussieny
Lamyia A. Thijar
Ameal H. Hmood
Roeda F. Kamel
G. A. Hamdan
Center and Department Water research and Directorate of water Treatment Technology and Ministry of Science & Technology


 Abstract

The effeciency of ethanolic extract of Nostoc linkia algae has been tested in reducing three species of bacteria Escherichia coli , Pseudomonas aeruginosa and Staphylococcus aureus which isolated from contamination water in Laboratory conditions 37 C in period treatment 72 hour in different concentration (0.25 , 0.5 , 0.75 , 1 mg/l ). It became obvious that the ethanolic extract of Nostoc linkia algae has high effeciency in reducing different bacterial number in removing ratio 98.9% after 72 hour . in concentrate 1 mg/l for bacteriaa Escherichia coli and 94.6, 75.3% in concentrate 1 and 0.75 mg/l respectivelly for bacteria Pseudomonas aeruginosa and 94.7, 80.1% in concentrate 1 and 0.75 mg/l respectivelly for bacteria Staphylococcus aureus . associated with different significant for two concentrate 1 and 0.75 mg/l . The total bacterial number reducing in removing ratio 90.8% in concentrate 1 mg/l of ethanolic extract of Nostoc linkia algae after 24 hour of experiment.



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