Biotechnology of production of protein food additive based on secondary raw materials of oil production

The paper considers soybean and sunflower meal, as well as rapeseed cake as potential sources of complete protein of plant origin for obtaining food protein supplements. A comparative characteristic of the physicochemical and biochemical parameters of the specified types of secondary raw materials of oil production is carried out. Application of the capillary electrophoresis method to identify the amino acid profile. It has been established that soybean meal has the highest concentration of amino acids, including lysine, methionine, isoleucine and glutamic acid, which indicates its high biological value. Sunflower meal occupies an intermediate position, while rapeseed cake is characterized by a reduced content of some amino acids and requires additional processing due to the presence of antinutritional substances. Technological approaches to obtaining protein concentrates using extraction, enzymatic hydrolysis and membrane filtration are presented. The data obtained confirm the prospects of using the studied raw materials as a functional component in food production and are aimed at implementing the principles of resource conservation and sustainable development of the agro-industrial complex.

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