Article (Scientific journals)
Molecular strategies for adapting Bacillus subtilis 168 biosurfactant production to biofilm cultivation mode
Brück, Hannah; Delvigne, Frank; Dhulster, Pascal et al.
2019In Bioresource Technology, 293
Peer Reviewed verified by ORBi
 

Files


Full Text
Brück et al. 2019 Bioresource Technology.pdf
Publisher postprint (1.06 MB)
Request a copy
Annexes
Brück et al. 2019 Bioresource Technology Supplementary Data.pdf
Publisher postprint (669.58 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Bacillus subtilis; Biofilm bioreactor; Cell adhesion; Filamentation; Surfactin; Bacteriology; Bioconversion; Biofilms; Bioreactors; Cell immobilization; Cell proliferation; Cells; Genetic engineering; Metabolites; Adhesion capacities; Biosurfactant production; Exopolysaccharides; Microbial cell factories; Time-lapse microscopy; Cell engineering; Article; Lipopeptides; Peptides, Cyclic
Abstract :
[en] Biofilm bioreactors have already been proven to be efficient systems for microbial lipopeptide production since they avoid foam formation. However, the cell adhesion capacities of the laboratory strain B. subtilis 168 to the biofilm bioreactor support are limited. In this work, we present a novel approach for increasing cell adhesion through the generation of filamentous and/or exopolysaccharide producing B. subtilis 168 mutants by genetic engineering. The single cell growth behavior was analyzed using time-lapse microscopy and the colonization capacities were investigated under continuous flow conditions in a drip-flow reactor. Cell adhesion could be increased three times through filamentous growth in lipopeptide producing B. subtilis 168 derivatives strains. Further restored exopolysaccharide production increased up to 50 times the cell adhesion capacities. Enhanced cell immobilization resulted in 10 times increased surfactin production. These findings will be of particular interest regarding the design of more efficient microbial cell factories for biofilm cultivation. © 2019 Elsevier Ltd
Disciplines :
Biotechnology
Author, co-author :
Brück, Hannah ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Delvigne, Frank  ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Dhulster, Pascal;  Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 ICV – Institut Charles Viollette, Lille, F-59000, France
Jacques, Philippe ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Coutte, François;  Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 ICV – Institut Charles Viollette, Lille, F-59000, France
Language :
English
Title :
Molecular strategies for adapting Bacillus subtilis 168 biosurfactant production to biofilm cultivation mode
Publication date :
2019
Journal title :
Bioresource Technology
ISSN :
0960-8524
eISSN :
1873-2976
Publisher :
Elsevier Ltd
Volume :
293
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ULiège - Université de Liège [BE]
Available on ORBi :
since 14 May 2020

Statistics


Number of views
71 (15 by ULiège)
Number of downloads
13 (13 by ULiège)

Scopus citations®
 
17
Scopus citations®
without self-citations
13
OpenCitations
 
16

Bibliography


Similar publications



Contact ORBi