Process optimization of continuous gluconic acid fermentation by isolated yeast-like strains ofAureobasidium pullulans

2005 ◽  
Vol 91 (4) ◽  
pp. 494-501 ◽  
Author(s):  
Savas Anastassiadis ◽  
Alexander Aivasidis ◽  
Christian Wandrey ◽  
Hans-Jürgen Rehm
Keyword(s):  
Process Optimization ◽  
Gluconic Acid ◽  
Acid Fermentation

scholarly journals Gluconic Acid Fermentation by Pullularia pullulans

1964 ◽  
Vol 28 (11) ◽  
pp. 752-756 ◽  
Author(s):  
Shoichi TAKAO ◽  
Yuji SASAKI
Keyword(s):  
Gluconic Acid ◽  
Acid Fermentation

scholarly journals Identification and characterization of target genes of the GinI/GinR quorum-sensing system in Gluconacetobacter intermedius

Microbiology ◽  
2009 ◽  
Vol 155 (9) ◽  
pp. 3021-3032 ◽  
Author(s):  
Aya Iida ◽  
Yasuo Ohnishi ◽  
Sueharu Horinouchi
Keyword(s):  
Acetic Acid ◽  
Quorum Sensing ◽  
Exponential Growth ◽  
Gluconic Acid ◽  
Exponential Growth Phase ◽  
Unexpected Finding ◽  
Acid Fermentation ◽  
Sensing System ◽  
Quorum Sensing System ◽  
Inducible Genes

The GinI/GinR quorum-sensing system represses oxidative fermentation, including acetic acid and gluconic acid fermentation, as well as antifoam activity in Gluconacetobacter intermedius NCI1051. An 89 aa protein, GinA, whose production is induced by the quorum-sensing system, represses both oxidative fermentation and antifoam activity via a still unknown mechanism, although an OmpA family protein, GmpA, as a target of the GinI/GinR quorum-sensing system via GinA, has been found to repress oxidative fermentation. In this study, four novel GinA-inducible genes (gltA, pdeA, pdeB and nagA) were identified and their involvement in oxidative fermentation and antifoam activity was examined by gene disruption. Disruption of nagA (which encodes a putative N-acetylglucosamine-6-phosphate deacetylase) decreased the growth rate in the exponential growth phase, indicating that nagA was required for the rapid growth of the strain. This unexpected finding revealed a new aspect of the GinI/GinR quorum-sensing system: it accelerates exponential growth by induction of nagA. In contrast, gltA (a putative glycosyltransferase) and pdeA (a putative cyclic-di-GMP phosphodiesterase) were shown to repress oxidative fermentation, including acetic acid and gluconic acid fermentation. gltA was also shown to repress antifoam activity. Disruption of pdeB (a putative phosphodiesterase/diguanylate cyclase) caused no phenotypic changes. Taking our previous results into consideration, these results showed an apparently complex mechanism for repressing oxidative fermentation by the quorum-sensing system; at least three GinA-inducible genes, gltA, pdeA and gmpA, were involved in the repression of oxidative fermentation by the GinI/GinR quorum-sensing system, the most characteristic feature of the acetic acid bacteria.

Development of reactive extraction systems for itaconic acid: a step towards in situ product recovery for itaconic acid fermentation

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45029-45039 ◽  
Author(s):  
Guneet Kaur ◽  
Kathy Elst
Keyword(s):  
Process Optimization ◽  
Itaconic Acid ◽  
Acid Production ◽  
Product Recovery ◽  
Reactive Extraction ◽  
Acid Fermentation ◽  
In Situ Product Recovery ◽  
Product Separation ◽  
Important Means

Process optimization by integration of bioconversion with product separation and recovery i.e. in situ product recovery (ISPR) is an important means to develop a sustainable and petrochemical-competitive biotechnological method for itaconic acid production.

Modelling and off line optimization of batch gluconic acid fermentation

1980 ◽  
Vol 10 (1-2) ◽  
pp. 87-94 ◽  
Author(s):  
L. Nyeste ◽  
B. Sevella ◽  
L. Szigeti ◽  
�. Sz�ke ◽  
J. Holl�
Keyword(s):  
Gluconic Acid ◽  
Acid Fermentation

Gluconic Acid Fermentation byPullularia pullulans

1964 ◽  
Vol 28 (11) ◽  
pp. 752-756
Author(s):  
Shoichi Takao ◽  
Yuji Sasaki
Keyword(s):  
Gluconic Acid ◽  
Acid Fermentation

Mathematical model of gluconic acid fermentation by Aspergillus niger

2007 ◽  
Vol 31 (1) ◽  
pp. 697-704
Author(s):  
Takeichiro Takamatsu ◽  
Suteaki Shioya ◽  
Toshiyuki Furuya
Keyword(s):  
Mathematical Model ◽  
Aspergillus Niger ◽  
Gluconic Acid ◽  
Acid Fermentation

scholarly journals Genetic Programming Assisted Stochastic Optimization Strategies for Optimization of Glucose to Gluconic Acid Fermentation

2002 ◽  
Vol 18 (6) ◽  
pp. 1356-1365 ◽  
Author(s):  
J.J.S. Cheema ◽  
N.V. Sankpal ◽  
S.S. Tambe ◽  
B.D. Kulkarni
Keyword(s):  
Genetic Programming ◽  
Stochastic Optimization ◽  
Gluconic Acid ◽  
Acid Fermentation

scholarly journals On the Gluconic Acid Fermentation. (Part III.)

1932 ◽  
Vol 8 (1-3) ◽  
pp. 9-9
Author(s):  
TEIZO TAKAHASHI ◽  
TOSHINOBU ASAI
Keyword(s):  
Gluconic Acid ◽  
Acid Fermentation
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