Identification of New Antimicrobial Peptides that Contribute to the Bactericidal Activity of Egg White against Salmonella enterica Serovar Enteritidis at 45 °C

Autor: Michel Gautier, Sylvie Bonnassie, Marie-Françoise Cochet, Sophie Jan, Nadine Leconte, Françoise Nau, Valérie Briard-Bion, Florence Baron, Catherine Guérin-Dubiard, Simon C. Andrews, Julien Jardin
Přispěvatelé: Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Rennes 1 - UFR Sciences de la vie et de l'environnement (UR1 SVE), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), School of Biological Sciences, Knight Building, University of Reading (UOR), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Université de Rennes - UFR Sciences de la vie et de l'environnement (UR SVE), Université de Rennes (UR)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Agricultural and Food Chemistry
Journal of Agricultural and Food Chemistry, American Chemical Society, 2021, ⟨10.1021/acs.jafc.0c06677⟩
Journal of Agricultural and Food Chemistry, 2021, ⟨10.1021/acs.jafc.0c06677⟩
ISSN: 0021-8561
1520-5118
DOI: 10.1021/acs.jafc.0c06677⟩
Popis: International audience; A recent work revealed that egg white (EW) at 45°C exhibits powerful bactericidal activity against S. enterica serovar Enteritidis, which is surprisingly little affected by removal of the >10 kDa EW proteins. Here, we sought to identify the major EW factors responsible for this bactericidal activity by fractionating EW using ultrafiltration and nanofiltration and by characterizing the physicochemical and antimicrobial properties of the resulting fractions. In particular, 22 peptides were identified by nano-LC/MS-MS and the bactericidal activities of representative peptides (with predicted antimicrobial activity) were further assessed. Two peptides (FVPPVQR and GDPSAWSWGAEAHS) were found to be bactericidal against S. enterica serovar Enteritidis at 45°C when provided in an EW environment. Nevertheless, these peptides contribute only part of this bactericidal activity, suggesting other, yet to be determined, antimicrobial factors.
Databáze: OpenAIRE