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Appl Environ Microbiol. 1974 February; 27(2): 425-426
Copyright © 1974 American Society for Microbiology. All Rights Reserved.
1 Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
ABSTRACT
Vegetative cells of Clostridium botulinum type E (Tenno) were heated at 40.5 C in a prereduced peptone-yeast extract broth (PY). During the heating period, cell numbers remained essentially constant for 3 h as indicated by roll tube counts in PY agar (PYA); however, injury and recovery from injury were observed when the cells were enumerated using PYA containing either 0.06 or 0.07% bile salts.
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