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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt
dc.identifier.isbn1872-8162pt
dc.typeArtigo de Periódicopt
dc.titleInactivation Of Bacillus Subtilis And Geobacillus Stearothermophilus Inoculated Over Metal Surfaces Using Supercritical Co2 Process And Nisinpt
dc.contributor.authorSilvapt
dc.contributor.authorMA; Araujopt
dc.contributor.authorAP; Ferreirapt
dc.contributor.authorJD; Kieckbuschpt
dc.contributor.authorTGpt
unicamp.author.emailtheo@feq.unicamp.brpt
dc.subjectSupercritical Fluidpt
dc.subjectSterilizationpt
dc.subjectBacillus Subtilispt
dc.subjectGeobacillus Stearothermophiluspt
dc.subjectNisinpt
dc.description.abstractThe 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.en
dc.relation.ispartofThe Journal of Supercritical Fluidspt_BR
dc.publisher.cityAMSTERDAMpt
dc.publisherELSEVIER SCIENCE BVpt
dc.date.issued2016pt
dc.identifier.citationThe Journal Of Supercritical Fluids. ELSEVIER SCIENCE BV, n. 109, p. 87 - 94.pt
dc.language.isoEnglishpt
dc.description.volume109pt
dc.description.issuenumberpt
dc.description.initialpage87pt
dc.description.lastpage94pt
dc.rightsfechadopt
dc.sourceWOSpt
dc.identifier.issn0896-8446pt
dc.identifier.wosidWOS:000368865800011pt
dc.identifier.doi10.1016/j.supflu.2015.11.013pt
dc.identifier.urlhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0896844615301868en
dc.description.sponsorshipFAPESP [2009/02677-2, 2009/15849-6]pt
dc.description.sponsorshipCNPq [473736/2009-8]pt
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt
dc.date.available2016-12-06T18:30:36Z-
dc.date.accessioned2016-12-06T18:30:36Z-
dc.description.provenanceMade available in DSpace on 2016-12-06T18:30:36Z (GMT). No. of bitstreams: 1 000368865800011.pdf: 2088091 bytes, checksum: f0f60bf8e61af35f638c19190f0eb9ac (MD5) Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320073-
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dc.description.conferencelocationpt
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