Mannan oligosaccharide (MOS) are widely used in animal husbandry in developed countries as a substitute for synthetic antibiotics. By selectively blocking the surface of pathogenic bacteria, mannan oligosaccharides prevent their attachment to the intestinal wall and the development of disease in animal. An easily accessible source of mannan oligosaccharide is a cell wall of yeast. In recent years, the institute has created a simple and easy to upscale equipment for production of mannan oligosaccharide. A running pilot production of MOS- drugs is launched that in the near future is planned to increase production and expand the range of products offered. Over the tests the processes of mechanochemical treatment of yeast biomass have been optimized, the biological tests conducted demonstrated the efficiency of obtained laboratory samples. To date, the development of technology is on the stage of initial introduction in production. The technology for producing drugs is characterized by the following characteristics: - Performance on the finished product - up to 100 kg / h; - MOS content in the finished product - up to 5%, which is comparable to global analogues; - Simplicity and reliability in the management and operation; - Relatively low cost of the "launch" of production. Over the past years, the relevance of this technology development was confirmed by grants from various levels of the federal target programs, awards and stipends.