H2 production by Escherichia coli batch cultures during utilization of acetate and mixture of glycerol and acetate

2015 ◽  
Vol 40 (36) ◽  
pp. 12187-12192 ◽  
Author(s):  
Karen Trchounian ◽  
Harutyun Sargsyan ◽  
Armen Trchounian
Keyword(s):  
Escherichia Coli ◽  
H2 Production ◽  
Batch Cultures

Fed-batch cultures of recombinant Escherichia coli with inhibitory substance concentration monitoring

1988 ◽  
Vol 66 (2) ◽  
pp. 187-191 ◽  
Author(s):  
Norio Shimizu ◽  
Shinichi Fukuzono ◽  
Kiyoshi Fujimori ◽  
Nabuko Nishimura ◽  
Yoji Odawara
Keyword(s):  
Escherichia Coli ◽  
Recombinant Escherichia Coli ◽  
Fed Batch ◽  
Inhibitory Substance ◽  
Batch Cultures ◽  
Substance Concentration

Graphics-associated modeling of batch cultures of Escherichia coli fermenting glucose

1994 ◽  
Vol 16 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Jérome Lefebvre ◽  
Guy-Alain Junter ◽  
Jean-Claude Vincent
Keyword(s):  
Escherichia Coli ◽  
Batch Cultures

Influence of specific growth rate over the secretory expression of recombinant potato carboxypeptidase inhibitor in fed-batch cultures of Escherichia coli

2010 ◽  
Vol 45 (8) ◽  
pp. 1334-1341 ◽  
Author(s):  
Juan-Miguel Puertas ◽  
Jordi Ruiz ◽  
Mónica Rodríguez de la Vega ◽  
Julia Lorenzo ◽  
Glòria Caminal ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Fed Batch ◽  
Secretory Expression ◽  
Batch Cultures ◽  
Carboxypeptidase Inhibitor

scholarly journals Roasted coffee wastes as a substrate for Escherichia coli to grow and produce hydrogen

2020 ◽  
Vol 367 (11) ◽  
Author(s):  
Hripsime Petrosyan ◽  
Liana Vanyan ◽  
Satenik Mirzoyan ◽  
Armen Trchounian ◽  
Karen Trchounian
Keyword(s):  
Escherichia Coli ◽  
H2 Production ◽  
High Rate ◽  
Main Role ◽  
Wild Type ◽  
Roasted Coffee ◽  
Energy Needs ◽  
Genetic Modifications ◽  
Coffee Grounds ◽  
And Control

ABSTRACT After brewing roasted coffee, spent coffee grounds (SCGs) are generated being one of the daily wastes emerging in dominant countries with high rate and big quantity. Escherichia coli BW25113 wild-type strain, mutants with defects in hydrogen (H2)-producing/oxidizing four hydrogenases (Hyd) (ΔhyaB ΔhybC, ΔhycE, ΔhyfG) and septuple mutant (ΔhyaB ΔhybC ΔhycA ΔfdoG ΔldhA ΔfrdC ΔaceE) were investigated by measuring change of external pH, bacterial growth and H2 production during the utilization of SCG hydrolysate. In wild type, H2 was produced with rate of 1.28 mL H2 (g sugar)−1 h−1 yielding 30.7 mL H2 (g sugar)−1 or 2.75 L (kg SCG)−1 during 24 h. In septuple mutant, H2 production yield was 72 mL H2 (g sugar)−1 with rate of 3 mL H2 (g sugar)−1 h−1. H2 generation was absent in hycE single mutant showing the main role of Hyd-3 in H2 production. During utilization of SCG wild type, specific growth rate was 0.72 ± 0.01 h−1 with biomass yield of 0.3 g L−1. Genetic modifications and control of external parameters during growth could lead to prolonged and enhanced microbiological H2 production by organic wastes, which will aid more efficiently global sustainable energy needs resulting in diversification of mobile and fixed energy sources.

Nonlinear Predictive Control of Fed-Batch Cultures of Escherichia coli

2010 ◽  
Vol 33 (7) ◽  
pp. 1112-1124 ◽  
Author(s):  
S. Tebbani ◽  
D. Dumur ◽  
G. Hafidi ◽  
A. Vande Wouwer
Keyword(s):  
Escherichia Coli ◽  
Predictive Control ◽  
Fed Batch ◽  
Batch Cultures ◽  
Nonlinear Predictive Control

Influence of process temperature on recombinant enzyme activity in Escherichia coli fed-batch cultures

2008 ◽  
Vol 43 (7) ◽  
pp. 507-512 ◽  
Author(s):  
Jaume Pinsach ◽  
Carles de Mas ◽  
Josep López-Santín ◽  
Gerald Striedner ◽  
Karl Bayer
Keyword(s):  
Escherichia Coli ◽  
Enzyme Activity ◽  
Recombinant Enzyme ◽  
Process Temperature ◽  
Fed Batch ◽  
Batch Cultures
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