2026-04-13Views：
Fermentation air quality requirements standards mainly include the following aspects:
microbial content:
microorganisms in the air (including bacteria, molds and yeasts) play an important role in the fermentation process, but their content needs to be controlled within an appropriate range to avoid contamination of fermentation products.
Dust and impurities:
dust and impurities in the air should be as little as possible to ensure the purity of the fermentation process. Specifically, the cleanliness of compressed air should reach a higher standard, such as level 100, that is, the maximum allowable number of dust particles per cubic meter of air is limited.
Temperature and humidity:
the temperature and humidity of the air are also important control parameters. In general, the temperature needs to be controlled within a suitable range to maintain the normal growth and reproduction of microorganisms. The humidity also needs to be moderate to ensure a smooth fermentation process.
Oxygen and nutrients:
during the fermentation process, microorganisms need sufficient oxygen and nutrients. Therefore, air quality standards also include ensuring that there is an appropriate oxygen supply and nutrients to meet the growth needs of microorganisms.
Chemical Contaminants:
the air must not contain chemicals that are harmful to the fermentation process, which may have an inhibitory effect on microorganisms or affect the quality of the fermentation product.
Pressure:
for some fermentation processes, a specific air pressure may also be required. For example, in some cases, the pressure of the air should be maintained in the range of 0.2 to 0.4 MPa.
To sum up, the standard of fermentation air quality is a comprehensive consideration, including microbial content, dust impurities, temperature and humidity, oxygen and nutrient supply, as well as chemical pollutants and pressure. These standards ensure a smooth fermentation process and minimize contamination and adverse effects. Please note that these standards may be adjusted for different fermentation products and processes.
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