Production of L-carnitine by secondary metabolism of bacteria

V Bernal, Á Sevilla, M Cánovas, JL Iborra - Microbial Cell Factories, 2007 - Springer
The increasing commercial demand for L-carnitine has led to a multiplication of efforts to
improve its production with bacteria. The use of different cell environments, such as growing …

Engineered catalytic biofilms for continuous large scale production of n‐octanol and (S)‐styrene oxide

R Gross, K Buehler, A Schmid - Biotechnology and …, 2013 - Wiley Online Library
This study evaluates the technical feasibility of biofilm‐based biotransformations at an
industrial scale by theoretically designing a process employing membrane fiber modules as …

Cellular choline and glycine betaine pools impact osmoprotection and phospholipase C production in Pseudomonas aeruginosa

LF Fitzsimmons, KJ Hampel, MJ Wargo - Journal of bacteriology, 2012 - Am Soc Microbiol
Choline is abundantly produced by eukaryotes and plays an important role as a precursor of
the osmoprotectant glycine betaine. In Pseudomonas aeruginosa, glycine betaine has …

Salt stress effects on the central and carnitine metabolisms of Escherichia coli

M Cánovas, V Bernal, A Sevilla… - Biotechnology and …, 2007 - Wiley Online Library
The aim was to understand how interaction of the central carbon and the secondary
carnitine metabolisms is affected under salt stress and its effect on the production of l …

Metabolic adaptation of Escherichia coli to long-term exposure to salt stress

P Arense, V Bernal, JL Iborra, M Cánovas - Process Biochemistry, 2010 - Elsevier
The aim of this work was to understand the relevance of central carbon metabolism in salt
stress adaptation of Escherichia coli. The cells were grown anaerobically in batch and …

Metabolic engineering for high yielding L(-)-carnitine production in Escherichia coli

P Arense, V Bernal, D Charlier, JL Iborra… - Microbial Cell …, 2013 - Springer
Abstract Background L (-)-carnitine production has been widely studied because of its
beneficial properties on various diseases and dysfunctions. Enterobacteria possess a …

Analysis of Escherichia coli cell state by flow cytometry during whole cell catalyzed biotransformation for L-carnitine production

M Cánovas, V García, V Bernal, T Torroglosa… - Process …, 2007 - Elsevier
Flow cytometry was used to monitor Escherichia coli cellular state during the
biotransformation of crotonobetaine into l-carnitine using growing and resting cells in batch …

Role of betaine:CoA ligase (CaiC) in the activation of betaines and the transfer of coenzyme A in Escherichia coli

V Bernal, P Arense, V Blatz… - Journal of applied …, 2008 - academic.oup.com
Aims: Characterization of the role of CaiC in the biotransformation of trimethylammonium
compounds into l (−)‐carnitine in Escherichia coli. Methods and Results: The caiC gene was …

In vivo and in vitro analyses of single-amino acid variants of the Salmonella enterica phosphotransacetylase enzyme provide insights into the function of its N-terminal …

SR Brinsmade, JC Escalante-Semerena - Journal of Biological Chemistry, 2007 - ASBMB
The function of the N-terminal domain (∼ 350 residues) of the Pta (phosphotransacetylase)
enzyme of Salmonella enterica is unclear. Results from in vivo genetic and in vitro studies …

Design of Metabolic Engineering Strategies for Maximizing l‐(–)‐Carnitine Production by Escherichia coli. Integration of the Metabolic and Bioreactor Levels

A Sevilla, J Vera, Z Díaz, M Cánovas… - Biotechnology …, 2005 - Wiley Online Library
In this work metabolic engineering strategies for maximizing l‐(–)‐carnitine production by
Escherichia coli based on the Biochemical System Theory (1–3) and the Indirect …