Solid Fermentation

without free water, the utility model has the advantages of simple operation, low energy consumption, easy control of the fermentation process, relatively low requirements for asepsis, and no large area pollution, etc. . However, foam problems often arise in this process. Recently, our sales department received a call from Mr. Zhou and learned that Mr. Zhou discovered a large amount of foam generated during the solid fermentation process. These bubbles can not be eliminated by themselves, it will accumulate more and more, so solid fermentation defoamer is recommended to it, and sent a sample trial.

Why does solid fermentation produce a lot of foam? What are the causes of blistering?

1. The amount of foam in the fermentation process is related to the intensity of agitation and aeration, which will lead to the formation of foam.

2. The nature of the medium can also affect the formation of foam, the rich nutrient composition of the medium, which is one of the main factors of foaming protein; 

3. In the growth cycle, because the rapid growth and reproduction of bacteria, the release of a lot of carbon dioxide, so that a large number of foam production;

4. Under the influence of fermentation PH value, the change of PH value will lead to the instability of solid fermentation, resulting in foam.

If the foam in solid fermentation is not eliminated in time, what will be the impact ?

1. Too much foam can lead to overflow, resulting in waste of fermentation bacteria and environmental pollution, causing a large number of fluid escape; 

2. Too much foam, gas exchange is blocked, will affect the respiration and metabolism of solid fermentation bacteria, resulting in poor fermentation effect; 

3. Foam production will affect the normal fermentation process and progress, resulting in a reduction in fermentation efficiency, resulting in excessive fermentation costs; 

4. If the foam is not removed in time, it will remain in the fermentation equipment, resulting in lower utilization of the equipment.

In the face of the problems of solid fermentation foaming, why would the use of solid fermentation defoamer? What are its advantages and characteristics?

1.  High content, little addition, good defoaming and foam inhibition effect, with rapid defoaming ability and lasting foam inhibition ability;

2. Stable chemical properties, high temperature and acid-alkali resistance, after use will not have an impact on the fermentation environment; 

3. Good water solubility and dispersion, no layering, no precipitation.