Studying the technology of reindeer bone raw materials low-temperature preservation

The purpose of research is to study the technology of low-temperature preservation of reindeer bones in order to organize a waste-free technology for their slaughter. Tasks: preparation of raw materials, determination of the optimal modes of preservation of bone raw materials of reindeer, grinding in a mill to a powder and studying the quality of the powder. Objects of study: tubular bones of the limbs, flat bones of the skull of reindeer aged 3 to 6 years. Reindeer bones were preserved by infrared drying at 45 °C for 6-8 hours. The study of the technology of preservation of bone raw materials of reindeer was carried out in the laboratory of biochemistry and mass analysis of the Federal State Budgetary Educational Institution of Higher Education "Arctic Agrotechnological University" during 2017-2021, currently, research is ongoing. The work uses computational, physical and chemical research methods that allow characterizing the properties, chemical composition and biological value of objects. The duration of conservation of reindeer bones in infrared drying is 6-8 hours, the resulting bone powder has a light brown color, has the smell of meat. The results of the analysis of reindeer bone powder show that 100 g of the product contains 11.5-12 % fat, 26.8-28.4 % protein, 56.0-56.1 % ash, 17.2-17.4 g/kg calcium, 8.4-8.5 g/kg phosphorus, zinc 10-10.4 mg/kg, iron 6.6-6.8 mg/kg, sulfur 1.6-1.8 mg/kg.