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Rasika et al  

Full Length Research Paper


Utilisation of Toxic Aromatic Compounds by Alkaliphilic Bacteria Isolated from Mangrove Ecosystems of Goa

 

*1Desai Gaokar Rasika, 1Borkar Sunita and 2Bhosle Saroj

 

1Department of Microbiology, P.E.S’s R.S.N. College of Arts and Science, Farmagudi, Ponda-Goa.
2Department of Microbiology, Goa -University, Taleigaon - Plateau, Taleigaon-Goa.

Corresponding author email: parth_shriman@yahoo.co.in

Received June 23, 2017; Accepted July 28, 2017

 

ABSTRACT

Alkaliphilic bacteria are bacteria which are capable of growth at high pH. Industrial waste effluents possessing a very high pH and containing various kinds of toxic and hazardous aromatic compounds can be treated using alkaliphiles, which exhibit an enormous potential of degrading these aromatic compounds thus helps in clearing the pollutants, which are mainly present in waste effluents which have a high pH. Therefore employing alkaliphiles for biodegradation of toxic compounds present in the industrial waste effluents would be of great help. In this study alkaliphiles were isolated from various mangrove ecosystems of Goa, West Coast of India. The alkaliphiles were isolated on PPYG medium (Polypeptone Yeast Extract Glucose) medium of pH 10.5. These alkaliphiles were also screened for their ability to degrade a wide range of aromatic compounds and it was observed that most of the alkaliphiles utilized these aromatic compounds especially benzoate phenol and tyrosine as sole source of carbon. Further one of these obligate alkaliphiles also showed an excellent degradative pathway for degradation of benzoate producing HMS (Hydroxy Muconic Semialdehyde) as a metabolite of degradation.


Keywords: Alkaliphiles, high pH, Bioremediation, Aromatic compounds, HMS.

 

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