CHEMICAL COMPOSITION AND PHYSICAL AND CHEMICAL PROPERTIES OF SLAUGHTER BY-PRODUCTS OF YOUNG BLUE ARCTIC FOX
This article is about using by-products of slaughter of fur animals. The literature search results for the selected topic are presented. It has been established that during the cultivation of fur animals and their slaughter valuable products are formed. These include carcasses of animals, cuts in the skin, fluff, fat, individual internal organs, excrement and the like. The leading fur animal breeding farms widely use slaughter products in various industries: agriculture, light industry, fodder production, food industry. Biologically active substances rich in by-products of the slaughter of carnivorous mammals have long been used in folk medicine. These products have found application in pharmacology, therapy and gerontology. In Ukraine, the majority of domestic animal husbandry farms do not fully utilize the livestock potential, since almost all slaughter by-products are utilized. Given this, the profitability of fur production is falling, environmental problems arise. Therefore, an in-depth study of the composition and properties of by-products of slaughter of fur animals is relevant.
We studied the chemical composition and physicochemical properties of the by- products of the slaughter of marketable young blue arctic fox (a homogenate from heat- treated carcasses and fats). The high nutritional and biological value of the homogenate was established, which was characterized by a high content of fat (up to 23%) and protein (up to 20%). It was proved that during storage of the deep-frozen homogenizate (-18 - -20 ° С) its chemical composition did not undergo significant changes, however, a decrease in active acidity and an increase in acid number were observed.
The chemical composition of arctic fox fat in fresh and frozen form has been studied. It has been proven that fox fat has a high neutral fat content and is a valuable source of essential polyunsaturated fatty acids: linoleic and linolenic. It has been established that 150-day storage of molten arctic fox fat adversely affects its physicochemical properties due to oxidative processes caused by partial lipolysis.