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What price is reasonable for a fermentation antifoam?
Release Date:
2021-01-04
Fermentation defoamers are produced through complex chemical reactions that integrate multiple functional groups with defoaming and foam‑suppressing properties, based on defoaming and foam‑inhibition principles and technologies. They belong to the broader category of defoamers. Given the high temperatures typically encountered in fermentation processes, these products must exhibit excellent heat resistance. Common types used in the fermentation industry include polyether‑based, silicone‑based, and silicone‑ether composite defoamers. They are required to deliver rapid defoaming, long‑lasting foam suppression, and robust resistance to high temperatures as well as strong acids and alkalis. Additionally, they should be free of adverse side effects, enhance product yield, require only small dosages, and facilitate straightforward downstream extraction.
Fermentation antifoaming agent Fermentation refers to the process by which microorganisms, under aerobic or anaerobic conditions, produce microbial biomass, as well as direct metabolic products or secondary metabolites. During this process, foam often forms due to factors such as agitation, cell lysis, environmental conditions, and increasing protein concentrations in the fermentation broth. If this foam is not promptly removed, it can adversely affect costs, operational procedures, and overall production. Therefore, at such times, it becomes necessary to employ… Fermentation antifoaming agent 。
How to address foam with fermentation antifoaming agents:
1. It overcomes the drawbacks of conventional silicone defoamers—poor high-temperature resistance and short foam-suppression duration—thus meeting the requirements for foam control throughout the entire fermentation process.
2. Low surface tension, with excellent spreading and penetrating properties.
3. Significant economic benefits, with low usage to control costs.
4. During the fermentation process, it does not harm the microbial strain and can improve its growth environment.
Reasons for fermentation and bubbling:
1. Aeration and stirring: the greater the aeration rate, the more vigorous the mixing, which in turn leads to the formation of numerous bubbles.
2. Lysis of microbial cells in the fermenter results in the release of large amounts of protein, causing continuous expansion of the liquid and, upon contact with air, the formation of numerous bubbles.
3. Affected by environmental factors, the fermentation temperature rose rapidly, and continuous stirring during the process further exacerbated the formation of bubbles, which only increased rather than decreased.
4. During fermentation, a high content of organic nitrogen sources results in increased viscosity and concentration of the fermentation broth, leading to greater foam stability.
5. During the vigorous growth phase of the microbial cells, the protein concentration in the fermentation broth increases, leading to enhanced viscosity and the formation of bubbles.
Fermentation defoamers are specially formulated for fermentation processes and are available in several types: oil-based defoamers, silicone‑based defoamers, and composite oil‑based defoamers. They are used to control foam in a wide range of fermentation operations, including the production of erythromycin, kitasamycin, avermectin, gentamicin, penicillin, citric acid, lysine, and yeast, among others. These defoamers are also extensively employed in veterinary pharmaceutical manufacturing and downstream extraction processes.
Fermentation defoamers are produced through complex chemical reactions that integrate multiple functional groups with defoaming and foam‑inhibiting properties, based on defoaming and foam‑suppression principles and technologies. They belong to the broader category of defoamers. Given the high temperatures typically encountered in fermentation processes, these products must exhibit excellent thermal stability. Common types used in the fermentation industry include polyether‑based, silicone‑based, and silicone‑polyether composite defoamers. They are required to deliver rapid defoaming, long‑lasting foam inhibition, and robust resistance to high temperatures as well as strong acids and alkalis. Additionally, they should be free of adverse side effects, enhance product yields, and allow for simple downstream extraction even at low addition levels.
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