ЗНЕВОДНЕННЯ КОЛАГЕНОВОГО РИБ'ЯЧОГО КЛЕЮ В УМОВАХ ДІЇ МІКРОХВИЛЬОВОГО ВИПРОМІНЮВАННЯ.

The problems of energy use and waste disposal are global problems of humanity, according to the World Trade Organization and the United Nations. Reducing the use of energy resources and increasing the share of biodegradable packaging in the food industry can reduce the burden on the environment. This study was performed in order to use the method of dehydration in the microwave field, which reduces energy costs. Analysis of research in Ukraine and around the world shows that such methods of dehydration are not used for collagen adhesives. Drying in ovens at low temperatures, which is used in industry, is long, requires a lot of energy. In addition, due to the duration of the process, antiseptics are added to the adhesive, which slows down the microbiological spoilage of the product. This article presents experimental studies of the process of dehydration of collagen glue in a microwave field. Since the product is thermolabile, several temperature regimes were analyzed: 40 °C, 60 °C, 80 °C in a microwave apparatus, and 60 °C in a thermostat. The glue samples were dehydrated to a moisture content of 17%, which corresponds to the moisture content of the product, which is produced industrially. According to the literature, under the influence of high temperature collagen adhesives lose their adhesive properties. It is currently unexplored how the microwave field can affect the quality of the adhesive. An experiment was performed using dehydrated samples in different modes to test the adhesive joint for mechanical deformation. Samples dehydrated in the microwave have successfully passed the tensile strength test. All samples withstood a load of 1.5 kN. Shear strength testing showed differentiation of results for samples treated at lower temperatures and samples treated at 80 °C and above. Loads on the adhesive joint before splitting showed that treated at temperatures below 60 ° C are stronger. [ABSTRACT FROM AUTHOR]