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Título: | Short communication Antimicrobial effect of lactoferrin and its amidated and pepsin-digested derivatives against Salmonella enteritidis and Pseudomonas fluorescens |
Autor: | Olmo, Ana del CSIC ORCID; Calzada Gómez, Javier; Núñez Gutiérrez, Manuel | Palabras clave: | Lactoferrin Derivative Salmonella Pseudomonas |
Fecha de publicación: | 2010 | Editor: | Elsevier | Citación: | Journal of Dairy Science 93(9): 3965-3969 (2010) | Resumen: | The antimicrobial effect of bovine lactoferrin (LF) and its amidated and pepsin-digested derivatives, at concentrations varying from 0.25 to 20. mg/mL, against 3 Salmonella Enteritidis strains and 3 Pseudomonas fluorescens strains was investigated. Lactoferrin showed its maximum antimicrobial effect at 10. mg/mL against the 3 Salmonella strains, with reductions ranging from 1.3 to 2.0 log units, and the 3 Pseudomonas strains, with reductions ranging from 1.8 to 5.4 log units. In the case of amidated LF, the maximum effect on the 3 Salmonella strains was recorded at 0.25. mg/mL, with reductions in the range of 0.8 to 1.2 log units, whereas it was recorded at 1. mg/mL for the 3 Pseudomonas strains, with reductions in the range of 4.4 to 6.0 log units. Pepsin-digested LF showed its maximum antimicrobial effect at 1. mg/mL against the 3 Salmonella strains, with reductions ranging from 2.6 to 3.4 log units, and at 20. mg/mL against the 3 Pseudomonas strains, with reductions ranging from 4.5 to 5.4 log units. It is worth noting the pronounced effect (reductions exceeding 2.5 log units) of a low (1. mg/mL) concentration of pepsin-digested LF, which is naturally formed in the gastrointestinal tract, on Salmonella and Pseudomonas strains. A highly significant inverse correlation was found between capsule polysaccharide levels of bacterial strains and their lethality in the presence of different concentrations of amidated lactoferrin. © 2010 American Dairy Science Association. | URI: | http://hdl.handle.net/10261/292322 | DOI: | 10.3168/jds.2010-3152 | ISSN: | 0022-0302 | E-ISSN: | 1525-3198 |
Aparece en las colecciones: | (INIA) Artículos |
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