Premium
Effect of Delayed Germination by Heat‐Damaged Spores on Estimates of Heat Resistance of Clostridium botulinum Types E and F
Author(s) -
LYNT R. K.,
KAUTTER D. A.,
SOLOMON H. M.
Publication year - 1983
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1983.tb14829.x
Subject(s) - spore , clostridium botulinum , heat resistance , strain (injury) , d value , germination , food science , incubation , endospore , biology , chemistry , microbiology and biotechnology , biochemistry , botany , toxin , materials science , anatomy , composite material
The effect of delayed germination by heat‐damaged spores on estimates of heat resistance of Clostridium botulinum types E and F was studied by analysis of data from thermal death time tube experiments. Type E strains were studied in crabmeat and nonproteolytic and proteolytic type F strains in phosphate buffer and crabmeat. The date each culture became positive was recorded and tabulated by week. The decimal reduction times (D) and z values for each strain were calculated at several different time intervals and compared. Although both D and z values increased during the incubation period, D values as much as fourfold, only proteolytic strains showed substantial increases in z values.