Sterile constant-temperature and constant-humidity bacterial culture experiment device

Abstract

The invention discloses a sterile constant-temperature and constant-humidity bacterial culture experiment device, belongs to the technical field of bacterial culture. According to the scheme of the device, bacteria in external air are gathered on the outer side of a sterile filter membrane, so that a connecting metal rope can be promoted to recover to a high-temperature phase state by means of heat generated by life activities of the external bacteria, to fully stir mixed reaction powder, and thus barium hydroxide octahydrate and ammonium chloride powder are promoted to fully react; on one hand, the metabolism efficiency of the external bacteria can be reduced and the bacteria are not prone to mass propagation by means of a refrigeration effect in the reaction process, and on the other hand, outer protection balloons can be promoted to quickly expand by means of ammonia gas generated by the reaction, magnetic shielding on the built-in magnetic balls can be released, and the two outer protection balloons are driven to extrude each other under the adsorption action of the two built-in magnet balls, so that an airflow flowing outwards is generated, the bacteria attached to the outer side of the sterile filter membrane are extruded out, and thus the possibility that a large number of external bacteria are attached is reduced.

Description

technical field [0001] The invention relates to the technical field of bacterial culture, in particular to a bacterial culture experimental device with aseptic constant temperature and humidity. Background technique [0002] Bacterial culture is a technology that uses artificial methods to grow and reproduce bacteria. Bacteria are widely distributed in nature, with a large number and variety. It can benefit human beings or cause diseases. Most bacteria can be cultivated by artificial methods. That is to inoculate it on the medium to make it grow and multiply, and the cultured bacteria are used for research, identification and application. Bacterial culture is a complex technology. [0003] When culturing, the culture method and medium should be selected according to the type and purpose of bacteria, and the culture conditions (temperature, pH value, time, oxygen demand, etc.) should be formulated. Do separation and culture, and then further identify the obtained single colo...

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Problems solved by technology

[0004] In the prior art, in the process of cultivating bacteria, it is necessary to use a petri dish, but in order to provide a sterile (other bacteria) environment for the bacteria to be cultured, it is necessary to set a sterile filter in the air inlet duct of the petri dish. Membrane, so as to reduce the possibility of contamination by other bacteria in the process of bacterial cultivation, but in actual use, with the circulation of gas between the culture dish and the outside world, it will accumulate outside the sterile filter membrane A large number of bacteria, with their mass reproduction and the water and carbon dioxide produced in life activities, will easily block the sterile filter membrane, thereby reducing the gas permeability of the bacteria in the petri dish and easily affecting the temperature and humidity in the petri dish

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