Kinetic evaluation of physiological heterogeneity in bacterial spores during thermal inactivation
نویسندگان
چکیده
منابع مشابه
Kinetic evaluation of physiological heterogeneity in bacterial spores during thermal inactivation.
Bacterial spores are in cryptobiosis during the dormant period, which can change vegetative cells upon exposure to favorable conditions and eventually cause serious illness through ingestion of spore-contaminated food (Leuschner et al., 1999; Reissbrodt et al., 2002; Roszak and Colwell, 1987). The most common spore-forming bacteria causing foodborne disease are aerobic Bacillus spp. and anaerob...
متن کاملThermal inactivation characteristics of bacterial spores at ultrahigh temperatures.
The thermal inactivation characteristics of Bacillus stearothermophilus (1518) spores and putrefactive anaerobe (PA) 3679 (NCA) spores suspended in skim milk were determined after treatment in pilot-plant ultrahigh-temperature (UHT) processing equipment. Temperature-survivor curves were constructed from survival data to emphasize the critical nature of temperature control in process evaluation....
متن کاملRadiation Inactivation of Bacterial Spores on Mars
Introduction: The conditions on Mars are thought to have been more conducive for life during its early history, about 3 billion years ago. If life ever evolved on Mars, would it be possible to see the remnants of a long-extinct biosphere today? Or even more interesting, would it be possible to find Martian bacterial spores that survived for billions of years on Mars? Bacterial spores exhibit a ...
متن کاملInactivation of bacterial spores by charged particles.
谷 田貝文夫,高 橋 旦,北 島淑男,松 山 晃:理 化学研究所,埼 玉 県和光市広沢2-1 〒351 Bacillus subtilis spores were bombarded with ƒ¿-particles and heavy ions of carbon , nitrogen, and oxygen accelerated in the IPCR cyclotron. The maximum RBE was found at an unrestricted LET of about 120 keV•EƒÊm-1 The effective inactivation cross section, Seff, for ƒ¿-particles increased with LET, reaching a stationary level of Sƒ¿st, 0.145 ƒÊ...
متن کاملEffect of cell moisture on the thermal inactivation rate of bacterial spores.
Thermal inactivation rates were determined for two strains of Bacillus subtilis var. niger spores after equilibration to various relative humidity (RH) levels. In these tests, small thin stainless-steel squares were each inoculated with a drop of spore suspension and equilibrated to 11, 33, or 85% RH. Following equilibration, the squares were placed on a hot plate preheated to 108, 125, 136, 16...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of General and Applied Microbiology
سال: 2009
ISSN: 1349-8037,0022-1260
DOI: 10.2323/jgam.55.295