At present, almost all dairy processing plants use membrane separation technology to process dairy products, because it has the advantages of less environmental pollution, low energy consumption, no need to use additives, avoiding thermal damage of products, and separating materials while filtering. Membrane separation technology has broad application prospects in the dairy processing industry. Today Shandong Bona Group will introduce the application of membrane separation technology in dairy sterilization.
Membrane separation technology has the advantage of cold sterilization, which can achieve sterilization of dairy products through the retention of bacteria and spores by micropores. Microfiltration technology can replace pasteurization and chemical preservatives, effectively retain bacteria, yeast and mold in dairy products, and allow the effective ingredients in dairy products to pass through. The microfiltration technology has low energy consumption and avoids high temperature heating, so the fresh milk almost maintains its original flavor. Use cross-flow filtration technology (membrane pore size is 1 to 1.5 μm) to remove bacteria in low-fat and medium-fat milk, and the sterilization rate is >99.6%.
Use membrane technology to concentrate and purify food components can retain the original flavor substances of food, and it has been widely used in the concentration of skim milk. High-grade ice cream can be made from milk concentrated by nanofiltration membrane. In general concentrated milk, the salts present in it are also concentrated, and the resulting ice cream has a poor taste. The amount of salt in the milk concentrated by the nanofiltration membrane is reduced, which makes the ice cream taste tender and smooth. At the same time, because it is not heated, the milk taste of the product is particularly strong.
Membrane separation technology advantages for dairy sterilization:
1. The membrane system has the characteristics of high separation efficiency. It is used for clarification, sterilization, impurity removal and filtration of raw material liquid, and can completely remove macromolecular tannin, pectin, mechanical particles impurities, foreign matter and other substances in the raw material liquid that affect product quality. All kinds of microorganisms, etc., the obtained products have good quality stability;
2. It not only realizes the sterilization and impurity filtration of the raw material liquid, but also realizes the separation of macromolecular substances and small molecular substances at room temperature;
3. The system adopts the design of cross-flow process, the flow retention of the equipment is good, and it is not easy to be blocked;
4. Simplify the process flow and reduce operating costs; automatic control, reliable operation, and balanced product quality;
5. Made of 304 or 316L stainless steel.
Shandong Bona Group is a manufacturer specializing in the production of membrane separation equipment. We have many years of production and technical experience, focusing on solving the problem of filtration and concentration in the production process of biological fermentation/alcoholic beverages/Chinese medicine extraction/animal and plant extraction. Circular production methods can effectively help customers improve production efficiency and achieve cleaner production. If you have problems in membrane filtration, please feel free to contact us, we will have professional technicians to answer your questions.
Post time: Apr-20-2022