The use of natural antioxidants in the technology of hunting fats

Studies have been conducted aimed at studying the process of prolonged storage of animal fats using natural antioxidants. The work used derivatives obtained from animals as a result of hunting in the territory of the Kemerovo region - Kuzbass in the period 2021-2022. Among such derivatives, the fats of winter-sleeping mammals, such as the brown bear (Latin Ursus arctos), the common badger (Latin. Meles meles), steppe marmot (Latin Marmota bobak). In alternative medicine, the adipose tissue of these mammals is used in melted form. The unique composition of the fatty acid complex of these derivatives is subject to significant destructive changes under the influence of a wide range of factors. Therefore, the issue of increasing the shelf life of ghee remains relevant. In this regard, the purpose of this study is to select the parameters of prolonged storage of animal fats using antioxidants of natural origin.. As an antioxidant, oak bark extract was used in the work, which was added to melted fat before being stored in an amount from 0.05 to 1 % by weight of the sample, controlling the oxidative damage of lipids during storage - acid and peroxide numbers by standard methods before storage, after 1, 2, 6, 12 and 18 months. As a result of research, it has been shown that the addition of oak bark extract, as a source of a complex of natural antioxidants, has a positive effect on the indicators of oxidative spoilage of lipids, allowing to increase the shelf life of melted fats of winter-sleeping animals to 18 months while reducing the growth of “acid number” by 18-37 %, “peroxide number” by 15-58 %, depending on the species fat content compared to the corresponding control samples.