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Estudo da microbiota de um produto cárneo cozido. Aplicação de duas tecnologias de embalagem: vácuo e atmosfera modificada

dc.contributor.advisorMatos, Teresa de Jesus da Silva
dc.contributor.advisorDionísio, Lídia Adelina Pó Catalão
dc.contributor.authorGuerreiro, Marta Sofia Ferreira Bentes da Encarnação
dc.date.accessioned2012-03-14T16:15:48Z
dc.date.available2012-03-14T16:15:48Z
dc.date.issued2011
dc.descriptionMestrado em Engenharia Alimentar - Instituto Superior de Agronomiapor
dc.description.abstractThe rice blood sausage is obtained through various manufacturing processes and subject to manipulation and is therefore liable to microbial contamination. Microbiological tests performed in this study aimed to contribute to the study of the microbiota along the expiry date (44 days) of rice blood sausage. It was studied the influence across the conservation of the product in different packaging technologies: modified atmosphere (80% CO2/20% N2) and vacuum, and without specific packaging technology. The microbiological parameters determined were: total microorganisms at 30oC, psychrotrophic, lactic acid bacteria, molds and yeasts, Clostridium perfringens, Bacillus cereus and Enterobacteriaceae. In each of the two studied batches were prepared three samples of each atmosphere. Sampling took place on days 1, 8, 15, 22, 30 and 44 of the storage lot. In enterobacteria the values obtained were above the ceiling for heat-treated meat products (102 cfu/g). The total microorganisms were isolated in higher concentrations (107cfu/g). The results failed to suggest what the best atmosphere that contributes to the quality and safety of rice blood sausage, because there was an atmosphere in which all organisms studied grew less.por
dc.identifier.citationGuerreiro, Marta Sofia Ferreira Bentes da Encarnação - Estudo da microbiota de um produto cárneo cozido. Aplicação de duas tecnologias de embalagem: vácuo e atmosfera modificada. Lisboa: ISA, 2011por
dc.identifier.urihttp://hdl.handle.net/10400.5/4061
dc.language.isoporpor
dc.publisherISA/UTLpor
dc.subjectrice blood sausagepor
dc.subjectatmospheres conservationpor
dc.subjectbacteriapor
dc.subjectmoldspor
dc.subjectyeastspor
dc.subjecthygiene indicatorpor
dc.titleEstudo da microbiota de um produto cárneo cozido. Aplicação de duas tecnologias de embalagem: vácuo e atmosfera modificadapor
dc.typemaster thesis
dspace.entity.typePublication
oaire.citation.endPage67por
oaire.citation.startPage1por
rcaap.rightsopenAccesspor
rcaap.typemasterThesispor

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