In microbial fermentation, excessive foam generation is a common and difficult problem. Too much foam not only reduces the effective working volume of the fermenter but may also cause broth overflow, leading to product loss and environmental pollution. It further hinders oxygen transfer and normal microbial metabolism, ultimately affecting fermentation efficiency and product yield. Traditional defoaming methods often suffer from drawbacks such as high dosage, unstable performance, and possible adverse effects on cell growth or downstream processes.
To address these core pain points, Chemi Tech has devoted extensive research to developing a series of high-efficiency defoamers specifically for microbial fermentation. Our solution does more than eliminate foam after it forms; it focuses on precise prediction and control of foam throughout the entire process. At its core is a unique multi-component synergistic system that rapidly lowers the surface tension of the foam film, causing the foam to break quickly, while maintaining long-lasting foam suppression in the fermentation system to prevent large-scale foam regeneration.
Our professional service includes the following specific steps. First, our technical team conducts an in-depth analysis of the customer's fermentation process, strain characteristics, medium composition and causes of foaming. Next, based on the analysis results, we select or blend the most suitable grade from Chemi Tech's range of defoamers to ensure both high efficiency and safety for the fermentation process. Then we provide detailed guidance on dosing point, dosing method and recommended dosage, typically suggesting fed-batch or dropwise addition to achieve precise and economical foam control. Finally, we provide full technical support to help customers optimize their application process and achieve stable production.
In one application at an amino acid producer, stubborn foam was generated in the middle and late stages of fermentation due to the accumulation of metabolites. Generic defoamers performed poorly and affected yield. After Chemi Tech's technical team intervened, they analyzed the properties of the fermentation broth and recommended a specific silicone-non-silicone composite defoamer while optimizing the addition strategy. After application, the fermenter filling coefficient increased by 15%, the risk of broth overflow was effectively prevented, and product yield improved steadily, all without any negative impact on cell growth or downstream extraction. The customer expressed high recognition of the sustained, stable production results.
Choosing Chemi Tech means choosing a reliable safeguard for your process. We are committed to helping you clear away foam obstacles in the fermentation process and improve production efficiency and economic returns through professional defoaming solutions.