What is defoamer

Defoamer is a substance used to reduce surface tension and eliminate foam in food processing  (Thailand food flavour supplier) . Foam is a heterogeneous dispersion system in which insoluble gas enters the liquid under the action of external force and a large number of bubbles are isolated by the liquid  (Thailand food flavour wholesale) . Foam is a thermodynamically unstable system, and its surface area tends to shrink and burst by itself. Natural defoaming takes a long time, and defoamers need to be used to achieve rapid defoaming to meet the requirements of food processing and production.

Most defoamers are liquid compound products  (Thailand food Ingredient supplier) , which are mainly divided into three categories: mineral oil, silicone and polyether. Mineral oil defoamers are usually composed of carriers, active agents, etc. The carrier is a substance with low surface tension, and its function is to carry and dilute. The commonly used carriers are water, aliphatic alcohol, etc  (Thailand food flavour wholesale) ., and the function of surfactant is to inhibit and eliminate foam, such as wax, aliphatic amide, fat and so on. Silicone defoamers generally include polydimethylsiloxane and so on.

The solubility of organosilicon defoamers is poor, and it has the characteristics of fast defoaming speed and good foam inhibition at room temperature, but delamination occurs at high temperature, slow defoaming speed  (Thailand food flavour supplier) , poor foam inhibition and so on. Polyether defoamers include polyoxypropylene oxidizing ethylene glycerol ether and so on  (Thailand food Ingredient supplier) . Polyether defoamer has the characteristics of long inhibition time, good effect, fast defoaming speed and good thermal stability. For example, defoamers are used in the production of fruit and vegetable drinks  (Thailand food Ingredient supplier) , bean products, sugar and so on.