Enhanced food sterilization through inclination of the container walls and geometry modifications

Varma, Mahesh N.; Kannan, A.

doi:10.1016/j.ijheatmasstransfer.2005.03.024

Cited by 34 publications

(37 citation statements)

References 15 publications

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“…The effectiveness of the thermal process was compared for three different package orientations, based on the three positions (AUGUSTO; CRISTIANINI, 2008HUANG, GHANI, 2005;GHANI et al, 1999a;TEIXEIRA, 1987TEIXEIRA, , 1988, pasteurization of water in cylindrical cans (AUGUSTO; BRANDON et al, 1984), sterilization of viscous fluid in cylindrical cans (AUGUSTO; SANDAKA, 2008;KANNAN, 2005KANNAN, , 2006HUANG;GHANI, 2005;GHANI et al, 1999aGHANI et al, ,b, 2001bCHEN, 2002a The temperature and velocity profiles were compatible with those described in different studies on heating different products in cans and bottles, pasteurization of water in bottles (AUGUSTO; HORN et al, 1997;BRANDON et al, 1984;ENGELMAN;SANI, 1983;BRANDON;PELTON;STAACK, 1982;BRANDON;HULING;STAACK, 1983), sterilization of water in cylindrical cans In the beginning of the process, heating of the extremities results in a large temperature gradient in the fluid and, consequently, density gradient, resulting in fluid movement in BLAYLOCK, 1990), and pasteurization of viscous fluid in bottles (AUGUSTO; CRISTIANINI, 2010a).…”

Section: Resultsmentioning

confidence: 99%

“…However, little attention has been deposited on modifications in the thermal processing of liquid foods through changes in geometry or orientation of its packaging (VARMA; KANNAN, 2005KANNAN, , 2006. Kannan and Sandaka (2008) observed the need for better understanding the heat transfer phenomenon associated with the thermal process of liquid foods to improve the processes.…”

Section: Introductionmentioning

confidence: 99%

“…carton-based package (TETRA PAK, 2010). Its dimensions are 94 mm of height, 83 mm of depth, and 45 mm of width (in Figure 1, respectively, ∆x, ∆y, and ∆z).…”

Section: Introductionmentioning

confidence: 99%

“…The maximum dimension of the elements generated was 2 mm (VARMA; KANNAN, 2006), with refining according to a geometrical expansion factor of 1.3 (VARMA; KANNAN, 2005KANNAN, , 2006. Mesh was formed by 437,514 elements.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of liquid foods, in which there is a mixture of product, regions final microbial count will be the mean value of the various portions. In this case, the process can be dimensioned and evaluated through BHATTACHARYA; BLAYLOCK, 1990;TEIXEIRA, 1987TEIXEIRA, , 1988, conical (VARMA; KANNAN, 2005KANNAN, , 2006, and irregular shaped packages such as bottles (AUGUSTO; CRISTIANINI, 2010a,b;HORN et al, 1997;BRANDON et al, 1984;ENGELMAN;SANI, 1983) and pouches (GHANI; FARID; CHEN, 2002b;GHANI et al, 2001a). However, there are no studies in the literature describing the thermal process of liquid foods in a brick shaped package.…”

Section: Introductionmentioning

confidence: 99%

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Computational fluid dynamics evaluation of liquid food thermal process in a brick shaped package

Augusto

Cristianini

2012

Food Sci. Technol

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Food processes must ensure safety and high-quality products for a growing demand consumer creating the need for better knowledge of its unit operations. The Computational Fluid Dynamics (CFD) has been widely used for better understanding the food thermal processes, and it is one of the safest and most frequently used methods for food preservation. However, there is no single study in the literature describing thermal process of liquid foods in a brick shaped package. The present study evaluated such process and the influence of its orientation on the process lethality. It demonstrated the potential of using CFD to evaluate thermal processes of liquid foods and the importance of rheological characterization and convection in thermal processing of liquid foods. It also showed that packaging orientation does not result in different sterilization values during thermal process of the evaluated fluids in the brick shaped package.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…carton-based package (TETRA PAK, 2010). Its dimensions are 94 mm of height, 83 mm of depth, and 45 mm of width (in Figure 1, respectively, ∆x, ∆y, and ∆z).…”

Section: Introductionmentioning

confidence: 99%