Технологический прорыв аграрно-пищевых инноваций молочного дела на примере универсального сельхозсырья. Ультрафильтрация

Abstract

Aim. Consideration of ultrafiltration as a process of membrane technology – directed and con-trolled filtration of whey through special semipermeable filters (membrane filters) with a pore size of 10-100 nm, carried out at a pressure of 0.3-1.0 MPa. Material and Methods. The research was conducted using methods of graphical representation of information, trend analysis, comparison method, analogy and systematization, analysis and com-parison of empirical material. Discussion. Ultrafiltration allows you to separate whey as a system by the size of the components-microparticles and macromolecules. In this case, from pre-separated or Microfiltered whey to UV – concentrate (retentate), the remains of milk fat (up to 0.1%) and high-molecular compounds (at the level of 0.5%) – a complex of whey proteins, and UV-filtrate (permeate) – soluble compounds (lac-tose, mineral salts and BAS). Ultrafiltration, in the logistics of molecular sieve separation of whey, takes over from microfiltration and is a precursor to nanofiltration. The process of ultrafiltration of whey is well studied, developed, hardware designed and scaled in the dairy industry. The effective-ness of ultrafiltration purification of subsurface serum using various semipermeable membranes was studied. The criteria for selecting membranes were selectivity – maximum for protein and minimum for lactose, and the same permeability. The «neural network» methodology was used for system ap-proximation of research results. Conclusion. As a result of research, the technology of milk sugar (lactose) of the food category of quality and the original technological scheme for the production of dry whey have been devel-oped.in the dairy industry.