Continuous Pasteurization
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Distribuição do tempo de residência em processo de pasteurização com trocador de calor a placas. / Residence time distribution in a pasteurization process with plate heat exchanger.
É apresentado um estudo de distribuição do tempo de residência nas etapas de um processo de pasteurização contínuo por trocador de calor a placas (aquecimento, resfriamento, regeneração e retenção). Para o estudo experimental, foi adotada a técnica condutimétrica usando cloreto de sódio em solução aquosa como traçador. Foram verificadas as i
Publicado em: 2008
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2. Experimental evaluation of the continuous pasteurization control of a orange juice model fluid / Avaliação experimental do controle da pasteurização continua de um fluido modelo de suco de laranja
The goal of this work was the building, instrumentation and implementation of conventional and non-conventional controllers in a HTST (Hight Temperature Short Time) continuous processing prototype of fruit juice. A plate heat exchange with three sections of heat exchange (regeneration, heating and cooling) and a holding tube were used to achieve a holding ti
Publicado em: 2007
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3. Kinetics of helminth eggs inactivation in water and digested sludges by saturated steam produced with methane from anaerobic digestors. / Inativação térmica de ovos de helmintos em água e em biossólidos digeridos: cinética em reator batelada e modelagem matemática em reator tubular.
Biological sludge can be a valuable resource for agricultural soil conditioning. However, an important obstacle for its use is the usual presence of pathogenic organisms, capable of disease dissemination. The main occurring pathogens are virus, bacteria, protozoa and helminth. Helminth eggs are very resistant to thermal inactivation. The Ascaris lumbricoids
Publicado em: 2006
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4. Cinética de inativação térmica da peroxidase e da polifenoloxidase presentes na água de coco verde por processo térmico contínuo. / Kinetic of thermal inactivation of peroxidase and polyphenol oxidase present in green coconut water by thermal continuous processing.
Considering the need for green coconut water pasteurization after opening the fruit due to microbial and enzymatic (peroxidase (POD) and polyphenol oxidase (PFD)) action, the objective of this work is to study the behavior of the activity of these enzymes during continuous thermal processing. The first stage of the work was the study of the enzymes thermal i
Publicado em: 2005
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5. Programa para determinação de parametros cineticos em sistemas de processamento termicos continuos de alimentos. / Program for determination of kinetic parameters in continuous thermal systems of food processing.
A pesquisa aqui apresentada visou o desenvolvimento de um programa de computador (ALIKINETIC.EXE) para estimar os parâmetros cinéticos de destruíção térmica em tratamentos térmicos contínuos de alimentos. Os métodos do Ponto Equivalente (EPM) e o método das Exposições Isotérmicas Pareadas Equivalentes (PEIE) foram implementados no programa e emp
Publicado em: 2005
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6. Estudo dos efeitos esterilizantes da aplicação de pulsos eletricos de alta voltagem em alimentos liquidos
Non-thermal food pasteurization and sterilization technologies are receiving increasing attention. The advantage is that of sterilizing contaminants in liquid foods without denaturation of some physiological compounds such as proteins and vitamins. In this research, the effects of the shape of the treatment chamber (plate-plate electrodes and coaxial) and in
Publicado em: 2001
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7. Milk Contamination and Resistance to Processing Conditions Determine the Fate of Lactococcus lactis Bacteriophages in Dairies
Milk contamination by phages, the susceptibility of the phages to pasteurization, and the high levels of resistance to phage infection of starter strains condition the evolution dynamics of phage populations in dairy environments. Approximately 10% (83 of 900) of raw milk samples contained phages of the quasi-species c2 (72%), 936 (24%), and P335 (4%). Howev
American Society for Microbiology.
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8. Two-Phase Slug Flow Heat Exchanger for Microbial Thermal Inactivation Research
A continuous two-phase (air-liquid), slug flow, tubular heat exchanger was developed for microbial thermal inactivation research to give exposure times and temperatures in the range of high-temperature, short-time milk pasteurization as well as heat-treated sample volumes of at least 2 ml. The use of air to compartmentalize the liquid in the capillary tubing