Steam sterilizing method

Abstract

The invention discloses a steam sterilizing method, which comprises a sterilizing treatment procedure and a sterilizing treatment post cooling procedure. Before the sterilizing procedure, the interior of a sterilizing chamber is preheated by adopting the hot air provided by a first hot air draught fan; and meanwhile, a second hot air draught fan connected with a hot air inlet of the sterilizing chamber through a storage steam heat exchanger is opened to preheat the storage steam heat exchanger. After the preheating treatment for the sterilizing chamber and the storage steam heat exchanger reaches a set temperature, the material is continuously preheated by the first hot air draught fan; and after the preheating treatment is finished, the material to be sterilized is sterilized by high-temperature steam or over-heated steam. The sterilizing method is simple and efficient, and avoids the problem that the high-temperature steam caused by the sterilizing method without the preheating treatment is condensed in the sterilizing chamber to damp the material so as to influence the quality.

Description

technical field [0001] The invention relates to a sterilization method, in particular to a steam sterilization method used in the fields of traditional Chinese medicine raw materials, food seasonings and other similar raw materials. Background technique [0002] Sterilization technology belongs to the basic technology of microbiology, which uses physical and chemical means to kill or remove the vegetative cells and their spores (or spores) of all microorganisms in the culture medium, fermentation equipment or other targets, so as to achieve the purpose of sterility. Sterilization technology is a necessary condition for culture medium, fermentation equipment or other target substances to obtain pure culture, and it is an indispensable technology to ensure food and drug safety in the food industry and pharmaceutical fields (especially in the field of traditional Chinese medicine production). [0003] The thoroughness of the sterilization technique depends on the two parameters...

AI Technical Summary

Problems solved by technology

[0008] For this reason, the technical problem to be solved by the present invention is that the steam sterilization method in the prior art is to set the heating steam in the outer jacket of the sterilization chamber, and then preheat the sterilization chamber before sterilization. It is easy to produce condensed water due to the instantaneous contact between high-temperature steam and normal temperature tank body, which will lead to uneven and incomplete preheating of the sterilization chamber, making the temperature of local areas in the chamber low; then when the high-temperature steam enters the chamber Finally, due to the local low temperature, the temperature will drop and condense, so that the raw materials will be soaked and damp after entering the cavity, so as to provide a uniform and sufficient preheating treatment for the sterilization chamber before sterilization, and A steam sterilization method in which moisture does not affect the properties of the product after sterilization after the raw material enters the sterilization environment

Images