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Year : 2017, Volume : 10, Issue : 3
First page : ( 264) Last page : ( 266)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2017.00042.6

Effect of osmotic stress on l-glutamic acid production by an auxotrophic mutant Micrococcus glutamicus AB100

Ganguly Subhadeep1,*, Banik Ajit Kumar2

1Vidyasagar College, Main Campus, 39 Sankar Ghose Lane, Kolkata, 700 006

2Department of Chemical Engineering, Biochemical Engineering Subdivision, Biotechnology Laboratory, A.P.C Road, Kolkata-700009

*Corresponding Author E-mail: res_biol@rediffmail.com

Online published on 22 September, 2017.


An experimental study was carried out to examine the effect of osmotic stress on L-glutamic acid production by the mutant Micrococcus glutamicus AB100. Initial addition of NaCl resulted in an arrest of the bacterial cell growth and glucose consumption. The cell growth was found to resume within few hours. Maximum cell growth was obtained with 1.0 (M) NaCl. Micrococcus glutamicus AB100 was found to grow even with 2.0(M) -3.0(M) NaCl.



Experimental, L-glutamic acid, Micrococcus glutamicus AB100, NaCl].


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