Thermal resistance of bacterial spores in particulate foods

G. Cerny, A. Fink, J. Wunderlich

Research output: Contribution to journalConference articlepeer-review

Abstract

Sterilization of liquids and solids in HTST-processes differs in several respects: a) if conventional heat exchangers are used, the particles will heat up less rapid than liquids do and as a consequence severe temperature differences build up between surface and center parts of the particles b) in continous flows systems it is impossible to determine the temperature within the particles irrespective which heat transfer technology will be used c) as a rule microorganisms are not as homogeneously distributed in particles as they mostly are in liquids d) components of particulate foods might exert direct influences upon thermal inactivation of bacterial spores. Some of these aspects mentioned above are treated in detail.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalVTT Symposium (Valtion Teknillinen Tutkimuskeskus)
Issue number119
StatePublished - 1991
EventNews in Aseptic Processing and Packaging - Espoo, Finl
Duration: 30 Jan 199131 Jan 1991

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