Record Details

Gluconic acid production under varying fermentation conditions byAspergillus niger

DIR@IMTECH: CSIR-Institute of Microbial Technology

View Archive Info
 
 
Field Value
 
Title Gluconic acid production under varying fermentation conditions byAspergillus niger
 
Creator Singh, Om V
Jain, R K
Singh, Rajesh P
 
Subject TP Chemical technology
 
Description The production of gluconic acid with respect to varying substrate concentrations in
submerged (SmF), semisolid-state (SmSF), surface (SF), and solid-state surface (SSF) fermentations
was analyzed. Under the various fermentation conditions the biomass and specific growth rate varied
with different concentrations of glucose. The highest level of gluconic acid (106.5g dm�3) with 94.7%
yield was obtained under SSF conditions. In all cases the maximumdegree of gluconic acid conversion
was observed at on initial substrate concentration of 120g dm�3. The rate of glucose uptake increased
on increasing the initial glucose concentration and glucose utilization was observed to be highest
(89–94%) in the SmSF process and was comparable with the SSF and SF processes. The maximumrate
of cell growth was obtained in all processes at an initial glucose concentration of 120g dm�3. The
gluconic acid production and change in pH were analyzed at varying time intervals and it was observed
that the SmF and SmSF processes were completed within 6 days of incubation whereas the highest
yield was observed after 12 days of incubation and continued thereafter in the SSF process.
# 2003 Society of Chemical Industry
 
Publisher http://onlinelibrary.wiley.com/doi/10.1002/jctb.748/pdf
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/938/1/jain2003.pdf
Singh, Om V and Jain, R K and Singh, Rajesh P (2003) Gluconic acid production under varying fermentation conditions byAspergillus niger. Journal of Chemical Technology & Biotechnology, 78 (2-3). pp. 208-212. ISSN 0268-2575
 
Relation http://dx.doi.org/10.1002/jctb.748
http://crdd.osdd.net/open/938/