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dc.contributor.author
Castellano, Patricia Haydee
dc.contributor.author
Belfiore, Carolina
dc.contributor.author
Vignolo, Graciela Margarita
dc.date.available
2017-05-31T17:52:04Z
dc.date.issued
2011-08
dc.identifier.citation
Castellano, Patricia Haydee; Belfiore, Carolina; Vignolo, Graciela Margarita; Combination of bioprotective cultures with EDTA to reduce Escherichia coli O157:H7 in frozen ground-beef patties; Elsevier; Food Control; 22; 8; 8-2011; 1461-1465
dc.identifier.issn
0956-7135
dc.identifier.uri
http://hdl.handle.net/11336/17163
dc.description.abstract
The effectiveness of bacteriocin-producing Lactobacillus curvatus CRL705 and Lactococcus lactis CRL1109 in combination with Na2EDTA on frozen ground-beef patties contaminated with Escherichia coli O157:H7, was investigated under temperature abuse conditions (5 C during 9 days). The presence of the bioprotective cultures (ca. 107 CFU/g) and chelator (48 mM) resulted in one log CFU/g reduction for E. coliLactobacillus curvatus CRL705 and Lactococcus lactis CRL1109 in combination with Na2EDTA on frozen ground-beef patties contaminated with Escherichia coli O157:H7, was investigated under temperature abuse conditions (5 C during 9 days). The presence of the bioprotective cultures (ca. 107 CFU/g) and chelator (48 mM) resulted in one log CFU/g reduction for E. coli2EDTA on frozen ground-beef patties contaminated with Escherichia coli O157:H7, was investigated under temperature abuse conditions (5 C during 9 days). The presence of the bioprotective cultures (ca. 107 CFU/g) and chelator (48 mM) resulted in one log CFU/g reduction for E. coliC during 9 days). The presence of the bioprotective cultures (ca. 107 CFU/g) and chelator (48 mM) resulted in one log CFU/g reduction for E. coli7 CFU/g) and chelator (48 mM) resulted in one log CFU/g reduction for E. coli strain, compared to the control on day 0. Similarly, a significant decline for indigenous coliforms in ground-beef patties was also observed in the presence of bacteriocinogenic strains and chelator. However, in the absence of Na2EDTA, neither E. coli nor coliforms were inhibited by the bioprotective cultures, the pathogen reaching similar counts than control samples (5.22 and 3.60 log CFU/g, respectively) at 9 days. When the growth of bacteriocinogenic strains on patties was evaluated, they were able to increase their population producing bacteriocins after 48 h up to the end of incubation period while a near neutral pH in the presence of Na2EDTA was detected. Non substantial effect on of ground-beef patties color was produced in the presence of bioprotective cultures, while a darker color developed in those added with the chelator. The simultaneous treatment with bioprotective cultures and Na2EDTA may be of value for the control of E. coli O157:H7 in temperature abused ground-beef patties.ficant decline for indigenous coliforms in ground-beef patties was also observed in the presence of bacteriocinogenic strains and chelator. However, in the absence of Na2EDTA, neither E. coli nor coliforms were inhibited by the bioprotective cultures, the pathogen reaching similar counts than control samples (5.22 and 3.60 log CFU/g, respectively) at 9 days. When the growth of bacteriocinogenic strains on patties was evaluated, they were able to increase their population producing bacteriocins after 48 h up to the end of incubation period while a near neutral pH in the presence of Na2EDTA was detected. Non substantial effect on of ground-beef patties color was produced in the presence of bioprotective cultures, while a darker color developed in those added with the chelator. The simultaneous treatment with bioprotective cultures and Na2EDTA may be of value for the control of E. coli O157:H7 in temperature abused ground-beef patties.2EDTA, neither E. coli nor coliforms were inhibited by the bioprotective cultures, the pathogen reaching similar counts than control samples (5.22 and 3.60 log CFU/g, respectively) at 9 days. When the growth of bacteriocinogenic strains on patties was evaluated, they were able to increase their population producing bacteriocins after 48 h up to the end of incubation period while a near neutral pH in the presence of Na2EDTA was detected. Non substantial effect on of ground-beef patties color was produced in the presence of bioprotective cultures, while a darker color developed in those added with the chelator. The simultaneous treatment with bioprotective cultures and Na2EDTA may be of value for the control of E. coli O157:H7 in temperature abused ground-beef patties.2EDTA was detected. Non substantial effect on of ground-beef patties color was produced in the presence of bioprotective cultures, while a darker color developed in those added with the chelator. The simultaneous treatment with bioprotective cultures and Na2EDTA may be of value for the control of E. coli O157:H7 in temperature abused ground-beef patties.2EDTA may be of value for the control of E. coli O157:H7 in temperature abused ground-beef patties.E. coli O157:H7 in temperature abused ground-beef patties.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Edta
dc.subject
Bioprotective Culture
dc.subject
Escherichia Coli
dc.subject
Ground- Beef Patties
dc.subject
Biopreservation
dc.subject.classification
Biología Celular, Microbiología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Combination of bioprotective cultures with EDTA to reduce Escherichia coli O157:H7 in frozen ground-beef patties
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-02-05T14:59:16Z
dc.journal.volume
22
dc.journal.number
8
dc.journal.pagination
1461-1465
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Castellano, Patricia Haydee. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); Argentina
dc.description.fil
Fil: Belfiore, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia para Lactobacilos (i); Argentina
dc.description.fil
Fil: Vignolo, Graciela Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia para Lactobacilos (i); Argentina
dc.journal.title
Food Control
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.foodcont.2011.02.018
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0956713511000776
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