Inactivation Of Bacillus Subtilis And Geobacillus Stearothermophilus Inoculated Over Metal Surfaces Using Supercritical Co2 Process And Nisin

dc.creatorSilva
dc.creatorMA; Araujo
dc.creatorAP; Ferreira
dc.creatorJD; Kieckbusch
dc.creatorTG
dc.date2016
dc.date2016-12-06T18:30:36Z
dc.date2016-12-06T18:30:36Z
dc.date.accessioned2018-03-29T02:03:10Z
dc.date.available2018-03-29T02:03:10Z
dc.identifier1872-8162
dc.identifierThe Journal Of Supercritical Fluids. ELSEVIER SCIENCE BV, n. 109, p. 87 - 94.
dc.identifier0896-8446
dc.identifierWOS:000368865800011
dc.identifier10.1016/j.supflu.2015.11.013
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0896844615301868
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320073
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310839
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe use of supercritical CO2 (SC-CO2) as sterilizing agent of liquids and solid surfaces is arising as one of the most promising alternative sterilization techniques. This technology shows potential to substitute current chemical and thermal processes that, despite efficient, can damage the material. In this study, the effect of supercritical CO2 treatment (with and without ethanol as co-solvent) on the sterilization of Bacillus subtilis and Geobacillus stearothermophilus spores inoculated over metal surfaces were evaluated under pressure of 30 MPa and different temperatures (30 and 60 degrees C) and treatment times (60,120 and 180 min). The effects of pressure cycles (Delta P=30 MPa) and the addition of a natural antimicrobial agent (nisin) were also tested. Considering the tested conditions, SC-CO2 treatment alone was not able to efficiently reduce spore population of microorganisms. However, an interesting synergic sterilizing effect (more than 7 log cycles) was observed when SC-CO2 treatment was used in combination with low concentrations of nisin. (C) 2015 Published by Elsevier B.V.
dc.description109
dc.description
dc.description87
dc.description94
dc.descriptionFAPESP [2009/02677-2, 2009/15849-6]
dc.descriptionCNPq [473736/2009-8]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherELSEVIER SCIENCE BV
dc.publisherAMSTERDAM
dc.relationThe Journal of Supercritical Fluids
dc.rightsfechado
dc.sourceWOS
dc.subjectSupercritical Fluid
dc.subjectSterilization
dc.subjectBacillus Subtilis
dc.subjectGeobacillus Stearothermophilus
dc.subjectNisin
dc.titleInactivation Of Bacillus Subtilis And Geobacillus Stearothermophilus Inoculated Over Metal Surfaces Using Supercritical Co2 Process And Nisin
dc.typeArtículos de revistas


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