Inactivation Kinetics of Bacillus coagulans Spore by the Combination of High Hydrostatic Pressure and Moderate Heat
- VernacularTitle:超高静压协同中温对凝结芽孢杆菌芽孢灭活动力学规律的研究
- Author:
Biao-Shi WANG
;
Bian-Sheng LI
;
Juan HUANG
;
Qing-Xiao ZENG
;
Zheng RUAN
;
Zhi-Wei ZHU
;
Lin LI
;
- Publication Type:Journal Article
- Keywords:
High hydrostatic pressure,Moderate heat,Bacillus coagulans spore,Inactivation kinetics
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
The combination effect of high hydrostatic pressure and moderate heat on the inactivation kinetics of Bacillus coagulans spore in phosphate buffer and UHT(Ultra High Temperature)whole milk was investigated.The pressure come-up time and corresponding log-reduction of spore inactivation were considered during pressure-thermal treatment.Bacillus coagulans spore had a much higher resistance to pressure in UHT whole milk than in phosphate buffer.Survival data were modeled using the linear,Weibull and log-logistic models to obtain relevant kinetic parameters.The tailing phenomenon occurred in all survival curves,indicating the linear model was not adequate for describing these curves.The log-logistic model produced best fits to survival curves,following by Weibull model.
