What are the benefits of using ultra-filtration membranes on dairy products?

The application of membrane separation technology  in dairy industry mainly includes cold bacteria of milk, standardization of milk protein, concentration of milk, purification and concentration of whey protein, separation of lactose and salt, etc. Instead of traditional methods such as low diffuse pasteurization, spray drying and ultraviolet sterilization, it can prevent the defenestration of whey protein, remove excess inorganic salts in whey, and maintain the quality and tissue state of concentrated lactose and protein. Stability and nutritional value. It is especially suitable for the "cold sterilization" of milk and maintains the activity of some functional components in the separation process. It is an ideal means for bovine colostrum bacteria removal. At present, industrialization has been achieved both at home and abroad. Application. Membrane technology used in dairy industry is mainly micro-filtration membrane, ultra-filtration membrane, exhilaration membrane, reverse osmosis membrane.

1. Instead of pasteurization and chemical preservative, the micro-filtration membranemainly intercepts fat, bacteria, yeast and poisonous bacteria, and makes the active ingredients in dairy products through to prepare aseptic milk, or to provide clarification for ultra-filtration of milk superabundant.

2. The ultra-filtration membrane intercepts most of the milk protein and separates it from lactose, minerals, salt and water, increasing the protein concentration from 10% to 12% to 50% or even 80% to produce whey protein concentrate. Then the production of white whey powder, compared with the traditional evaporation process greatly reduced energy consumption.

3. The important application of nanofiltration membrane is the desalination of whey, the soluble salt can be reused or discharged directly through the nanofiltration membrane, and the concentrate will return to reuse. The advantage of this method is that it not only solves the problem of waste-water discharge, but also increases the economic benefit by recycling.

4. The application of reverse osmosis membrane not only improved the quality of whey protein, but also obtained lactose concentrate.