Deepen the defoaming field, assist in efficient production, and provide one-stop foam solutions
Welcome to Nanjing Golden Key Biotechnology Co., Ltd.!
Five Major Advantages of Fermentation Antifoaming Agents
Release Date:
2020-11-11
Defoamers are a common type of additive, and their primary function is to eliminate foam. In industrial production, there is a wide variety of defoamers available. So what are the main advantages of fermentation‑grade defoamers? Let’s take a detailed look below.
Defoamers are a common type of additive, and their primary function is to eliminate foam. In industrial production, there is a wide variety of defoamers; therefore, Fermentation antifoaming agent What are its main advantages? Let’s take a detailed look below!
1. Water-based defoamer
To burst bubbles, defoamers should concentrate and accumulate at the bubble film. For defoaming applications, they must achieve rapid concentration and accumulation; for foam‑inhibition purposes, this state should be maintained continuously. Consequently, defoamers exist in a supersaturated condition within the foaming liquid, and only compounds that are insoluble or poorly soluble can readily attain such a state. Because of their insolubility or low solubility, they tend to adsorb at the gas–liquid interface, concentrate on the bubble film, and exert their effect even at relatively low concentrations. For aqueous systems, the active ingredient should exhibit strong hydrophobicity and weak hydrophilicity, with an HLB value between 1.5 and 3, to ensure optimal performance—examples include silicone‑based or polyether‑based defoamers.
2. Surface tension is lower than that of the foaming liquid.
Only when the intermolecular forces of the defoamer are weak and its surface tension is lower than that of the foaming liquid can the defoamer particles penetrate and spread across the bubble film. It is worth noting that the surface tension of the foaming liquid is not the surface tension of the solution itself, but rather the surface tension of the foam‑stabilizing solution.
3. Exhibits a certain degree of affinity with the foaming liquid.
Since the defoaming process essentially involves a competition between the rate of foam collapse and the rate of foam formation, the defoamer must be able to disperse rapidly in the foaming liquid, thereby exerting its effect over a broad area. To ensure rapid spreading, the active ingredient of the defoamer should exhibit a certain degree of affinity with the foaming liquid. If the active ingredient is too compatible with the liquid, it will dissolve; if it is too incompatible, it will be difficult to disperse. Only when compatibility is optimal can the defoamer perform effectively.
4. Does not undergo a chemical reaction with the foaming liquid.
The defoamer reacts with the foaming liquid; on the one hand, the defoamer loses its effectiveness, and on the other hand, it may generate harmful substances that inhibit microbial growth.
5. Low volatility and long-lasting efficacy
Adding a defoamer to the system offers low volatility and a prolonged action, delivering excellent performance.
Domestic Business Department
13770937137(Ms. Ge)
No. 5, Lingxiao Road, Lukou Subdistrict, Jiangning District, Nanjing City
Foreign Trade Department