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Master's Dissertation
DOI
https://doi.org/10.11606/D.74.2019.tde-05092019-162551
Document
Author
Full name
Tatiana Maria Nogueira Chinait
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Pirassununga, 2019
Supervisor
Committee
Kushida, Marta Mitsui (President)
Ferreira, Daniela Souza
Kamimura, Eliana Setsuko
Trindade, Marco Antonio
Title in Portuguese
Avaliação das barreiras aplicadas às linguiças cozidas e defumadas como investigação das causas de sua deterioração
Keywords in Portuguese
Shelf life
Microbiologia
Produtos cárneos
Segurança de alimentos
Tecnologia das barreiras
Abstract in Portuguese
Linguiças cozidas defumadas armazenadas a temperatura ambiente, é um produto tipicamente brasileiro, no qual são empregadas algumas barreiras para a extensão do shelf life: cozimento, defumação e embalagem à vácuo. Estudos de durabilidade comprovaram que muitas não atendem ao shelf life esperado. Na empresa estudada, somente 23% dos lotes das linguiças em estudo atenderam a 90 dias de armazenamento desejados para a indústria de alimentos e 17% dos lotes não chegaram à 45 dias. Foram realizadas avaliações microbiológicas antes do cozimento (média de 5,03 log UFC/g), após cozimento (média de 1,56 log UFC/g) e após resfriamento (média 1,54 log UFC/g) para os gomos com calibre de 40-44mm; comprimento 23-26cm; com peso variando de 260-300 gramas onde foram submetidos ao processo de cozimento e defumação por, no mínimo, 5 horas, atendendo no mínimo 71,1°C no centro térmico do gomo. Os parâmetros físico-químicos também foram avaliados e atendem a legislação, com valores de aw 0,938 e pH 6,33, favoráveis ao desenvolvimento microbiológico. Também foram realizadas análises sensoriais para avaliação dos atributos sensoriais ao longo do armazenamento a temperatura ambiente.
Title in English
Evaluation of the hurdle applied to cooked and smoked sausages as an investigation of the causes of their deterioration
Keywords in English
Food safety
Hurdle technology
Meat products
Microbiology
Shelf life
Abstract in English
Smoked sausages stored at room temperature, is a typical Brazilian product, in which some hurdles are used to extend shelf life: cooking, smoking and vacuum packing. Durability studies have proven that many do not achieve the expected shelf life. In the studied company, only 23% of the lots of the sausages under study attended the 90 days of storage desired for the food industry and 17% of the lots did not reach 45 days. Microbiological evaluations were performed before cooking (average of 5.03 log CFU/g) after cooking (mean of 1.56 log CFU/g) and after cooling (mean 1.54 log CFU/g) for the caliber 40-44mm; length 23-26cm; with weight varying from 260-300 grams where they were submitted to the cooking and smoking process for at least 5 hours, attending at least 71.1°C in the thermal center of the oven. The physico-chemical parameters were also evaluated and comply with the legislation, with values of aw 0.938 and pH 6.33, favorable to the microbiological development. Sensory analyzes were also performed to evaluate the sensory attributes along the storage at room temperature.
 
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ME9381638COR.pdf (1.10 Mbytes)
Publishing Date
2019-09-10
 
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