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Start Over Author "Théwis, André" Topic campylobacter
3 results on '"Théwis, André"'

1. In vitro antagonistic activity evaluation of Lactic Acid Bacteria (LAB) combined with cellulase enzyme against campylobacter jejuni growth in co-culture

Author

Vandeplas Sabrina, Marcq Christopher, Thonart Philippe, Robin Dubois-Dauphin, Théwis André, and Didderen Isabelle

Subjects
Cellulase, medicine.disease_cause, Applied Microbiology and Biotechnology, Campylobacter jejuni, Microbiology, chemistry.chemical_compound, Acetic acid, Lactobacillales, Antibiosis, medicine, Lactic Acid, chemistry.chemical_classification, biology, Campylobacter, Substrate (chemistry), General Medicine, biology.organism_classification, Coculture Techniques, Lactic acid, Anti-Bacterial Agents, Culture Media, Enzyme, chemistry, biology.protein, Bacteria, Biotechnology
Abstract

The antibacterial effects of nine lactic acid bacteria (LAB) against Campylobacter jejuni were investigated by using agar gel diffusion and co-culture assays. Some differences were recorded between the inhibition effects measured with these two methods. Only two LAB, Lb. pentosus CWBI B78 and E. faecium THT, exhibited a clear anti- Campylobacter activity in co-culture assay with dehydrated poultry excreta mixed with ground straw (DPE/GS) as the only growth substrate source. It was observed that the supplementation of such medium with a cellulase A complex (Beldem S.A.) enhanced the antimicrobial effect of both LAB strains. The co-culture medium acidification and the C. jejuni were positively correlated with the cellulase A concentration. The antibacterial effect was characterized by the lactic acid production from the homofermentative E. faecium THT and the lactic and acetic acids production from the heterofermentative Lb. pentosus CWBI B78. The antagonistic properties of LAB strains and enzyme combination could be used in strategies aiming at the reduction of Campylobacter prevalence in the poultry production chain and consequently the risk of human infection.

Published
2011

2. Prevalence and sources of Campylobacter spp. contamination in free-range broiler production in the southern part of Belgium.

Author

Vandeplas, Sabrina, Dubois-Dauphin, Robin, Palm, Rodolphe, Beckers, Yves, Thonart, Philippe, and Théwis, André

Subjects
BROILER chickens, EPIDEMIOLOGICAL research, CAMPYLOBACTER, FARMS, RODENT control
Abstract

Copyright of Biotechnologie, Agronomie, Societe et Environnement is the property of Les Presses Agronomiques de Gembloux and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2010

3. Contamination of poultry flocks by the human pathogen Campylobacter spp. and strategies to reduce its prevalence at the farm level.

Author

Vandeplas, Sabrina, Marcq, Christopher, Dauphin, Robin Dubois, Beckers, Yves, Thonart, Philippe, and Théwis, André

Subjects
CAMPYLOBACTER infections, EPIDEMIOLOGY, PATHOGENIC microorganisms, POULTRY, POULTRY products, FOOD contamination, FOODBORNE diseases, ENTERITIS
Abstract

Copyright of Biotechnologie, Agronomie, Societe et Environnement is the property of Les Presses Agronomiques de Gembloux and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2008

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