Abstract

The increase of functional food production makes the search for new non-traditional raw materials and the selection of methods for their processing relevant. Methods for obtaining biologically active substances of a lipid nature from valuable raw materials extracted from hunting animals (bear, badger, marmot and beaver) are of particular interest. The purpose of this review is to analyze the existing methods of obtaining rendered fat from raw fat and evaluate them.
The objects of analysis were the data of scientific articles, patents and studies on the extraction of the lipid fraction from raw materials of animal origin from 2017 to 2021. In the work, various methods for extracting fats were considered. Their systematization, analyze, and description were carried out, indicating the advantages and disadvantages.
The considered methods for extracting lipid components can be used in the process of rendering fat from non-traditional raw materials of animal origin. When using the dry rendering method, the heating of adipose tissue is carried out by the conductive method, which leads to oxidative processes and a decrease in the quality of the finished product. The wet rendering method is carried out by interacting raw fat with a heating agent – water or live steam, which, by varying the temperature and duration of exposure, allows to preserve the properties and quality of the product.
Wet rendering methods are the most effective. These methods allow to obtain a high-quality finished product, as well as to produce the maximum yield of valuable lipid components of raw materials. To accelerate the technological process with the wet method of exposure, it is possible to use a biocatalytic method. The results of the research can be used in the development of schemes for obtaining biologically active substances of a lipid nature from valuable expensive raw materials extracted from hunting animals.

Keywords

Fat, raw fat, rendering, quality, hunting animals

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