Effects of superheated steam on Geobacillus stearothermophilus spore viability
نویسندگان
چکیده
منابع مشابه
Weibull Model for Inactivation of Geobacillus Stearothermophilus Spores in Superheated Steam
Spores of Geobacillus stearothermophilus at two inoculum levels (3 and 6 log colony forming units per gram, cfu/g) were challenged with superheated steam (SS) at a velocity of 0.35 m/s and temperature of 130, 145, 160, and 175C. Tailing was observed in the survivor curves (plots of survival ratios, log( o N N ) against treatment time) as a monotonic upward concavity. Therefore, a non-linear reg...
متن کاملComparative characterization of silver nanoparticles synthesized by spore extract of Bacillus subtilis and Geobacillus stearothermophilus
Objective(s): Silver nanostructures have gathered remarkable attention due to their applications in diversefields. Researchers have recently demonstrated that bacterial spores are capable of reducing silver ions toelemental silver leading to formation of nanoparticles.Materials and Methods: In this study, spores of Bacillus subtilis and Geobacillus stearothermophilus wereemployed to produce sil...
متن کاملGeobacillus stearothermophilus ATCC 7953 spore chemical germination mechanisms in model systems
Bacterial endospores through their strong resistance to both chemical and physical hurdles constitute a risk for food industry. Inactivation strategies are based on thermal and/or chemical treatments but rely on incomplete knowledge of the mechanisms of inactivation. Alternative strategies were suggested to achieve food safety while improving product quality. One of them relies on the successiv...
متن کاملSpore production by Bacillus stearothermophilus.
Methods reported in the literature for the production of spores by Bacillus stearothermophilus require from 4 to 14 days of incubation (N. Finley and M. L. Fields, Appl. Microbiol. 10:231, 1962; D. I-C. Wang, J. Scharer, and A. E. Humphrey, Appl. Microbiol. 12:451, 1964; L. L. Campbell, C. M. Richards, and E. E. Sniff, p. 55, in L. L. Campbell and H. 0. Halvorson [ed.], Spores III, American Soc...
متن کاملUsing Superheated Steam in Drying and Sterilization
Botanicals are received in whole, non-sterile form. BI Nutraceuticals sterilizes, mills, and packages the ingredient in sturdy, safe containers before shipping to customers. Photo courtesy of BI Nutraceuticals Using Superheated Steam in Drying and Sterilization It seems counterintuitive to use water vapor in a process to remove water or to heat materials that can be damaged by moisture, but suc...
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: Journal of Applied Microbiology
سال: 2008
ISSN: 1364-5072,1365-2672
DOI: 10.1111/j.1365-2672.2007.03647.x