Thermal inactivation clostridium butyricum for preventing or treating asthma and preparation method of thermal inactivation clostridium butyricum
A technology of live Clostridium butyricum and Clostridium butyricum, which is applied in the field of medicine, can solve the problems of unclear anti-asthma efficacy of Clostridium butyricum, and achieve the effect of no risk of infection, good stability and outstanding effect
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[0019] 1. Materials and methods
[0020] 1.1 Material: Clostridium butyricum CGMCC NO: 0313-1 provided by Shandong Kexing Biopharmaceutical Co., Ltd.;
[0021] 1.2 Experimental method
[0022] 1.2.1 Heat inactivation of Clostridium butyricum: First measure the bacterial content of Clostridium butyricum powder, then weigh a certain weight of Clostridium butyricum powder and heat inactivate at 110kpa and 121°C for 20 minutes to obtain heat inactivation Clostridium butyricum. Store at -20°C after naturally cooling to room temperature.
[0023] 1.2.2 Preparation of heat-inactivated Clostridium butyricum bacteria solution: before use, heat-inactivated Clostridium butyricum is added to phosphate buffered saline (PBS) to prepare the bacteria content (the bacteria content before inactivation) for 5X10 8 CFU / ml of suspension. Ultrasonic cell disruptor with 40% power was crushed 4 times to promote dissolution, and the duration of each ultrasound was 15s with an interval of 20s. Th...
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