Rudnieva L. Technology for processing wax-like components into food and technical products

The dissertation is devoted to the scientific substantiation and development of a technology for extracting wax-like components from wastes of the fat-and-oil industry and processing the obtained wax-like components in food and technical products. The relevance of the work is associated with the improvement of the technology for extracting wax-like components from wastes of the fat-and-oil industry and the rational use of wax-like components of plant origin. In the process of processing oilseeds, especially sunflower, at the stages of dehulling of seeds, the production waste is sunflower husk, which does not find further use. Improving the technology for extracting useful substances from waste and their further use are quite relevant in our time. Growing demands on the quality of food products, expanding the scope of application of wax-like components and increasing competition in the field of food production require improvements in the technology of processing secondary raw materials, including wax-like components. In order to utilize waste and determine possible areas of practical application, studies were carried out on a method for extracting wax-like components from sunflower husks. In the dissertation work, for the first time, new scientific data on the extraction of wax-like components from sunflower husks by immersion and percolation methods using an organic solvent (hexane) and the use of the obtained wax-like components in wax-containing products were obtained. It has been experimentally proven that percolation followed by freezing of wax-like components from miscella is the optimal way to obtain wax-like components from sunflower husks. Experimental studies were carried out to substantiate the selection of the ranges of selected technological parameters, namely: the ratio of sunflower husk: solvent as 1 : 1, 1 : 2, 1 : 3 and 1 : 4, the duration of the extraction process in the range of 2-8 h, the temperature of freezing of wax-like components from miscella in the range of 4-25°C.