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HEAT RESISTANCE OF BACILLUS SPECIES
Author(s) -
DAVIES F. L.
Publication year - 1975
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.1975.tb00683.x
Subject(s) - spore , endospore , heat resistance , food spoilage , bacillus (shape) , food science , bacteria , biology , thermal resistance , microbiology and biotechnology , heat transfer , materials science , thermodynamics , composite material , genetics , physics
The survival of sporeforming bacteria in the heat processing of milk and the various mechanisms by which spores withstand severe heat treatment are discussed. Data are given concerning the spoilage potential and heat resistance of psychotropic sporeforming bacteria in milk. The types, numbers and heat resistance of spores in milk from countries with high average temperatures are considered in relation to processing. Laboratory experiments predicting thermal death of spores at temperatures within the UHT range are described and the many factors influencing the heat resistance of endospores, the most significant of which are the environmental conditions during sporulation, heating and recovery, are summarized.