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Biocontrol of Staphylococcus aureus in curd manufacturing processes using bacteriophages

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dc.contributor Ministerio de Educación y Ciencia (España)
dc.contributor Consejo Superior de Investigaciones Científicas (España)
dc.contributor European Commission
dc.creator García Suárez, María Pilar
dc.creator Madera, Carmen
dc.creator Martínez Fernández, Beatriz
dc.creator Rodríguez González, Ana
dc.date 2008-05-16T07:43:24Z
dc.date 2008-05-16T07:43:24Z
dc.date 2007-10
dc.date.accessioned 2017-01-31T01:20:19Z
dc.date.available 2017-01-31T01:20:19Z
dc.identifier International Dairy Journal 17(10): 1232-1239 (2007)
dc.identifier http://hdl.handle.net/10261/4293
dc.identifier 10.1016/j.idairyj.2007.03.014
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4293
dc.description The ability of specific bacteriophages to inhibit Staphylococcus aureus growth in curd manufacturing processes was determined. Two lytic bacteriophages specific against S. aureus were obtained by DNA random deletion from the milk-isolated temperate phages, ΦH5 and ΦA72. A cocktail of these lytic phages, Φ88 and Φ35, at multiplicity of infection (MOI) of 100, produced a complete elimination of 3×106 cfu mL−1 of the pathogen in ultra-high-temperature (UHT) whole milk at 37 °C. Furthermore, the frequency of emergence of bacteriophage-insensitive mutants was reduced up to 200-fold in the presence of the two lytic phages compared with that detected with the combination of the temperate counterparts. The lytic phage derivatives, added to milk, were able to decrease rapidly the viable counts of S. aureus during curd manufacture. In acid curd, the pathogen was not detected after 4 h of incubation at 25 °C, whereas pathogen clearance was achieved within 1 h of incubation at 30 °C in renneted curd. These results indicate that lytic bacteriophages could be used as biopreservatives in the manufacture of particular dairy products.
dc.description This research study was supported by Grant AGL2006-03659/ALI from the Ministry of Education and Science of Spain. Pilar García is a fellow of the Spanish Ministry of Education Ramón y Cajal Research Programme.
dc.description Peer reviewed
dc.format 227328 bytes
dc.format application/msword
dc.language eng
dc.publisher Elsevier
dc.rights openAccess
dc.subject Lytic phage
dc.subject Biocontrol
dc.subject Dairy products
dc.subject Staphylococcus aureus
dc.title Biocontrol of Staphylococcus aureus in curd manufacturing processes using bacteriophages
dc.type Artículo


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