Rapse cake quality increasing method in AIC

The purpose of research is a comparative study of the qualitative characteristics of rapeseed cake obtained according to the classical technology and the developed method with the removal of the shell. Objectives: to study the qualitative characteristics of rapeseed cake, to compare cake obtained in the classical way and according to the developed technology. The objects of study are cake with a shell (obtained by traditional technologies) and cake obtained from a peeled rapeseed kernel (obtained by the proposed technology). Protein content was determined according to GOST P 51417-99, fiber content according to GOST 13979.4. The content of glucosinolates and isicionates was determined by gas-liquid chromatography according to GOST ISO 15302-2019. A method is proposed for obtaining rapeseed oil from a peeled oil kernel from the shell, as a result of which the cake obtained after separating the oil has a yellow color and a nutty smell. The separation of the shell from the oilseed kernel in the production of rapeseed oil makes it possible to obtain a higher quality cake, since the main content of anti-nutritional substances is in the shell and does not pass into the cake. It has been established that in the oilcake obtained by the proposed technology, the content of anti-nutritional substances decreases (glucosinolates - by 28.5 %, isothiocyanates - by 50 %), and the protein content also increases to 44 %. Obtaining rapeseed cake using the technology with the removal of the shell makes it possible to improve the quality of both vegetable oil and rapeseed cake, reducing the proportion of anti-nutritional substances in them, while increasing the amount of protein up to 44 %. The peeled cake will receive new opportunities for use not only in the feed industry, but will also allow it to be widely used in the food industry and as high-protein supplements. The remaining shell can serve as a raw material for the production of fuel briquettes, and as additives in the production of materials for the construction industry.