Fermentation technology has a wide range of applications in the fields of food, biology, and chemical industry, and has broad development prospects. During the fermentation process, due to the action of microorganisms, some gases, such as carbon dioxide, and other things will be produced, which can easily form foam, which will not only affect the fermentation process, but also increase costs. In the production process, in order to quickly and effectively eliminate the foaming phenomenon, the method of adding a fermentation defoamer is usually adopted.
(fermentation-specific defoamer)
In the process of fermentation production of amino acids, drugs, beer, etc., a large amount of foam will be generated during the fermentation production process due to factors such as stirring, ventilation, and microbial metabolism. If the foam is not removed in time, some fermentation liquid will overflow, thereby increasing the loss of materials and the probability of bacterial infection. At the same time, the fermentation process also has very high requirements for defoamers. Therefore, fermentation-specific defoamers are non-toxic and harmless, will not affect the normal growth of bacteria, and can also withstand high temperatures (about 300°C), and have good defoaming and anti-foaming effects. There are many types of it, but the more common ones are:
Fermentation-specific defoamers are made by special treatment and have certain biological inertness. According to the characteristics of the fermentation process, it can be directly added to the fermentation liquid together with the basic raw materials, and then fed or supplemented after high-temperature sterilization, thus solving the problems of unstable high-temperature sterilization, inhibition of microbial growth, and easy scaling of the fermentation tank before fermentation, and it has the advantages of easy separation and easy cleaning of the tank after fermentation.
How to use the fermentation-specific defoamer:
1. It can be added to the system that needs defoaming at one time
2. The defoamer is continuously dripped into the fermentation liquid
3. Dosage: 0.1%-0.3%
Before application, the appropriate dosage should be selected according to the characteristics of the fermentation process, so that the yield can be more easily improved, but if too much is added, it will affect the growth of the strain. Before selecting a product, a small sample of the foam liquid should be taken to simulate the actual application situation, conduct a defoaming experiment, and determine the dosage of the defoamer.
