Efficacy of chestnut and quebracho wood extracts to control Salmonella in poultry.

Autor: Casanova NA; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina., Redondo LM; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina., Redondo EA; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina., Joaquim PE; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina., Dominguez JE; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina., Fernández-Miyakawa ME; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina., Chacana PA; Instituto de Patobiología - UEDD IPVet, INTA-CONICET, Instituto Nacional de Tecnología Agropecuaria, Nicolas Repetto y De Los Reseros S/N, Buenos Aires, Argentina.
Jazyk: angličtina
Zdroj: Journal of applied microbiology [J Appl Microbiol] 2021 Jul; Vol. 131 (1), pp. 135-145. Date of Electronic Publication: 2020 Dec 16.
DOI: 10.1111/jam.14948
Abstrakt: Aims: The study was aimed to evaluate the antibacterial activity and efficacy of chestnut and quebracho wood extracts against Salmonella by in vitro assays and in vivo trials.
Methods and Results: The extracts showed inhibitory activity against Salmonella determined by the minimum inhibitory concentration method as well as on the adhesion and invasion of S. Gallinarum (SG) and S. Enteritidis (SE) in Caco-2 cells. Also, transmission electron microscopy revealed that extract-treated Salmonella showed disruption of cell walls and membranes, damage of the cytoplasm and tannin-protein aggregations. In addition, efficacy of the extracts to control SG and SE was evaluated in experimental infection trials in laying hens and broilers respectively. SE excretion was significantly reduced on days 5 (P < 0·01) and 12 (P < 0·025) only in the quebracho group. In the fowl typhoid infection model, hens that received the chestnut extract showed a significantly reduced mortality (P < 0·05).
Conclusions: Our results evidence that these alternative natural products may be a useful tool to control Salmonella in poultry.
Significance and Impact of the Study: Salmonella is a zoonotic pathogen usually associated with poultry production. This study provides information about the mechanism of antibacterial effects of chestnut and quebracho wood extracts to control Salmonella in poultry.
(© 2020 The Society for Applied Microbiology.)
Databáze: MEDLINE
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