STUDIES ON SOME BIOCHEMICAL CHANGES DURING CITRIC ACID PRODUCTION IN A SYNTHETIC MEDIUM BY A MUTANT ASPERGILLUS NIGER AB1801Abstract
An experimental study was carried out to examine the biochemical changes in the fermentation broth during citric acid production by a mutant Aspergillus niger AB1801. The production of citric acid was increased upto 8th day of fermentation, and then declined. pH decreased continuously, dry cell weight followed continuous increment pattern. Amino nitrogen and urea nitrogen decreased gradually, but ammonical nitrogen increased steadily.
P. Ghosh, S. Ganguly* and A. K. Banik
Department of Chemical Engineering (Biochemical Engineering Division), University of Calcutta, 92, A. P. C. Road, Kolkata- 700 009, West Bengal, India
25 March, 2012
11 May, 2012
19 June, 2012
01 July 2012