Development of methodology for creating technologies for processing low-grade semi-finished products of fish oils and fatty waste

The development of fish oil production in Russia requires solving a number of environmental issues. It is necessary to develop technologies for processing low-grade semi-finished products of fish oils and fat waste. Currently, this problem remains unresolved. In the course of the study, the physicochemical properties of fat-containing objects (semi-finished product of technical fish oil with acid number of more than 20 units; soap stock after fish oil refining; fatty foam mass after flotation treatment of industrial wastewater from fish oil production) have been determined and rational directions for their use have been established. It is noted that these objects contain lipids with a high degree of hydrolysis and unsaturation. The developed methodology for creating private technologies for processing technical fish oils and fatty wastes into target products for technical purposes makes it possible to obtain an oil-in-water dispersed system and a fatty acid concentrate from the objects of study. The resulting products can be used as a basis for the production of anti-adhesive, surface-active, film-forming and anti-friction technical reagents for various industries (including food industry).