Thermal Death Kinetics Of B. Stearothermophilus Spores In Sugarcane Must

dc.creatorNolasco Junior J.
dc.creatorDe Massaguer P.R.
dc.date2007
dc.date2015-06-30T18:45:51Z
dc.date2015-11-26T14:33:52Z
dc.date2015-06-30T18:45:51Z
dc.date2015-11-26T14:33:52Z
dc.date.accessioned2018-03-28T21:37:16Z
dc.date.available2018-03-28T21:37:16Z
dc.identifier
dc.identifierJournal Of Food Process Engineering. , v. 30, n. 5, p. 625 - 639, 2007.
dc.identifier1458876
dc.identifier10.1111/j.1745-4530.2007.00122.x
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-34548273057&partnerID=40&md5=c244e5d811d7923a9c68b1ab874d7d71
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/104672
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/104672
dc.identifier2-s2.0-34548273057
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1247963
dc.descriptionThermal death kinetic parameters for Bacillus stearothermophilusspores were evaluated in sugarcane must (21.5°Brix, pH = 6.14) at temperatures ranging from 98 to 130C, using the thermal-death-time tube method and survivors count. Resulting survival curves showed strong nonlinearity and different shapes according to heating temperature. The 98 and 110C curves showed an initial shoulder or thermal lag and were adjusted to the logistic model. At the temperature range of 120-125C, the two-term exponential model for population with heterogeneous heat resistance was fitted, and at 130C, the classic linear model was suitable. It was shown that rate constants are influenced by temperature according to two irreconcilable methods: the Arrhenius and the Bigelow methods. Activation energy (Ea) obtained was 249.52 kJ/mol while thermal resistance parameter (z-value) calculated from Ea and the Bigelow method were 11.48 and 9.19C, respectively. Thermal death kinetic constant, k values, varied from 0.019 to 13.63/min. © 2007, Blackwell Publishing.
dc.description30
dc.description5
dc.description625
dc.description639
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dc.languageen
dc.publisher
dc.relationJournal of Food Process Engineering
dc.rightsfechado
dc.sourceScopus
dc.titleThermal Death Kinetics Of B. Stearothermophilus Spores In Sugarcane Must
dc.typeArtículos de revistas


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