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Title of Journal: Appl Microbiol Biotechnol

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Abbravation: Applied Microbiology and Biotechnology

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Springer-Verlag

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DOI

10.1016/0378-4363(83)90166-3

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1432-0614

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Characterization of biochemical properties and bio

Authors: Kishore Das Ashis K Mukherjee
Publish Date: 2005/11/12
Volume: 69, Issue: 2, Pages: 192-199
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Abstract

Biochemical and pharmacological properties of biosurfactants produced at 45°C temperature by Pseudomonas aeruginosa mucoid M and nonmucoid NM strains isolated from hydrocarboncontaminated soil samples were characterized Both the strains secreted appreciable amount of biosurfactants 50–65 g/l responsible for the reduction of surface tension of the medium from 68 to 29±05 mN/m post 96 h of growth Maximum yield of biosurfactants was observed following the supplementation of NH4Cl and glycerol as nitrogenous source and carbon source respectively These thermostable biosurfactants exhibited strong emulsifying property and could release appreciable amount of oil from saturated sandpack column Pharmacological characterization of these biosurfactants revealed that they induced dosedependent hemolysis and coagulation of plateletpoor plasma but were nondetrimental to chicken lung liver heart and kidney tissues Our study has documented that biosurfactants from P aeruginosa M and NM strains could be exploited for use in petroleum sectors as well in pharmaceutical industriesWe are grateful to Dr Anil K Lala Indian Institute of Technology Mumbai and Dr P Deepalakshmi Indian Institute of Science Bangalore for MALDITOF analysis and Dr SM Raj Institute of Microbial Technology Chandigarh for GC analysis of bacterial FAMEs The authors are thankful to Prof PC Deka and Prof BK Konwar Tezpur University for their useful suggestions and constant encouragement to pursue the present work K Das was a recipient of Senior Research Fellowship from ONGC sponsored Center for Petroleum Biotechnology Department of Molecular Biology and Biotechnology Tezpur University

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