Respiratory Activity of Aspergillus niger W78B during Gluconic and Citric Acid Biosynthesis

Podgorski, W., Gruszka, R. and Lesniak, W. Respiratory Activity of Aspergillus niger W78B during Gluconic and Citric Acid Biosynthesis Chemical Papers, Vol.57, No. 1, 2003, 35-38

Document type: ńĆl√°nok z ńćasopisu / Journal Article
Collection: Chemical papers  

Author(s) Podgorski, W.
Gruszka, R.
Lesniak, W.
Title Respiratory Activity of Aspergillus niger W78B during Gluconic and Citric Acid Biosynthesis
Journal name Chemical Papers
Publication date 2003
Year available 2003
Volume number 57
Issue number 1
ISSN 0366-6352
Start page 35
End page 38
Place of publication Poland
Publisher Versita
Collection year 2003
Language english
Subject 290000 Engineering and Technology
290100 Industrial Biotechnology and Food Sciences
Abstract/Summary Based on experiments carried out on synthetic media with saccharose andglucose, the activity of Aspergillus niger W78B strain with respect togluconic and citric acid biosynthesis was correlatedwith oxygen consumption andcarbon dioxide evolution by the microorganisms (gases exchange).The strainrevealed a high eficiency of substrate conversion to gluconic and citric acid,giving ayield factor of product on substrate, YP/S, close to 1and 0.8, respectively. The product formationindicated 5 times higher rate ofgluconate than citrate synthesis. It was caused by almost 1.5 timeshighervalues of speci_c oxygen uptake and 3 times lower demand of microorganism cellson oxygenin the case of gluconic acid synthesis.
 
 
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Created: Thu, 07 Jan 2010, 09:42:23 CET by Jana Taptińćov√° . Detailed History