Article (Scientific journals)
In vitro antagonistic activity evaluation of Lactic Acid Bacteria (LAB) combined with cellulase enzyme against Campylobacter jejuni growth in co-culture
Dubois Dauphin, Robin; vandeplas, Sabrina; Didderen, Isabelle et al.
2011In Journal of Microbiology and Biotechnology, 21 (1), p. 62-70
Peer reviewed
 

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Keywords :
Co-culture; Lactic-acid bacteria; Campylobacter; cellulolytic enzymes; antagonistic activity; acetic acid
Abstract :
[en] The antibacterial effects of nine Lactic Acid Bacteria (LAB) on Campylobacter jejuni were investigated using agar gel diffusion and co-culture assay. Inhibition potential was not the same between both techniques. Only two LAB, Lb. pentosus CWBI B78 and E. faecium THT, showed an anti-campylobacter activity in co-culture assay in using dehydrated poultry excreta mixed with ground straw (DPE/GS) as the only growth substrate source. It was observed that the complementation with Cellulase A complex (Beldem S.A.) of this medium enhanced antimicrobial effect of both bacteria. The co-culture medium acidification was correlated with the concentration in supplemented enzyme. The antibacterial effect was characterized by the production of lactic acid by the homofermentative E. faecium THT and the lactic and acetic acids production by the heterofermentative Lb. pentosus CWBI B78. The antagonistic properties from bacteria-enzyme cooperation could reduce the prevalence of Campylobacter consequently the risk of human infection.
Research center :
University of Liège, Gembloux Agro-Bio Tech - Bio-Industries Unit
Disciplines :
Biotechnology
Author, co-author :
Dubois Dauphin, Robin ;  Université de Liège - ULiège > Chimie et bio-industries > Bio-industries
vandeplas, Sabrina
Didderen, Isabelle
Marcq, Christopher ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Thewis, André ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles
Language :
English
Title :
In vitro antagonistic activity evaluation of Lactic Acid Bacteria (LAB) combined with cellulase enzyme against Campylobacter jejuni growth in co-culture
Alternative titles :
[fr] Evaluation de l'activité antagoniste de bactéties lactiques combinées avec une cellulase sur la croissance de Campylobacter
Publication date :
January 2011
Journal title :
Journal of Microbiology and Biotechnology
ISSN :
1017-7825
eISSN :
1738-8872
Publisher :
Springer, Germany
Volume :
21
Issue :
1
Pages :
62-70
Peer reviewed :
Peer reviewed
Funders :
Directorate for Agriculture, natural Resources, and Environment (DGARE) of the Walloon Regional Government of Belgium (Research Project, D31-1189)
Available on ORBi :
since 06 December 2011

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