Microbial Modeling Of Thermal Resistance Of Alicyclobacillus Acidoterrestris Cra7152 Spores In Concentrated Orange Juice With Nisin Addition [modelagem Microbiana Da Resistência Térmica De Esporos De Alicyclobacillus Acidoterrestris Cra7152 Em Suco De Laranja Concentrado Com Adição De Nisina]

dc.creatorPena W.E.L.
dc.creatorde Massaguer P.R.
dc.creatorTeixeira L.Q.
dc.date2009
dc.date2015-06-26T13:38:14Z
dc.date2015-11-26T14:59:56Z
dc.date2015-06-26T13:38:14Z
dc.date2015-11-26T14:59:56Z
dc.date.accessioned2018-03-28T22:11:23Z
dc.date.available2018-03-28T22:11:23Z
dc.identifier
dc.identifierBrazilian Journal Of Microbiology. , v. 40, n. 3, p. 601 - 611, 2009.
dc.identifier15178382
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-70349487488&partnerID=40&md5=bd0c9b92349ba97636836e4c04b15eac
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/92985
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/92985
dc.identifier2-s2.0-70349487488
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1256122
dc.descriptionThe nisin effect on thermal death of Alicyclobacillus acidoterrestris CRA 7152 spores in concentrated orange juice (64°Brix) was studied. Concentrations of 0, 50, 75 and 100 IU of nisin/ml juice, at temperatures of 92, 95, 98 and 102°C were evaluated. The quadratic polynomial model was used to analyze the effects of the factors and their interaction. Verification of surviving spores was carried out through plating in K medium (pH 3.7). The results showed that the D values without nisin addition were 25.5, 12.9, 6.1 and 2.3 min for 92, 95, 98 and 102°C respectively. With addition of nisin into the juice there was a drop of heat resistance as the concentration was increased at a same temperature. With 30, 50, 75, 100 and 150 IU/ml at 95°C, the D values were 12.34, 11.38, 10.49, 9.49 and 9.42 min respectively, showing that a decrease in the D value up to 27% can be obtained. The second order polynomial model established with r2 = 0.995 showed that the microorganism resistance was affected by the action of temperature followed by the nisin concentration. Nisin therefore is an alternative for reducing the rigor of the A. acidoterrestris CRA 7152 thermal treatment.
dc.description40
dc.description3
dc.description601
dc.description611
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dc.languagept
dc.publisher
dc.relationBrazilian Journal of Microbiology
dc.rightsaberto
dc.sourceScopus
dc.titleMicrobial Modeling Of Thermal Resistance Of Alicyclobacillus Acidoterrestris Cra7152 Spores In Concentrated Orange Juice With Nisin Addition [modelagem Microbiana Da Resistência Térmica De Esporos De Alicyclobacillus Acidoterrestris Cra7152 Em Suco De Laranja Concentrado Com Adição De Nisina]
dc.typeArtículos de revistas


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