RESEARCH AND CHOICE OF THE OPERATING PARAMETERS OF EXTRACTION FOR JERUSALEM ARTICHOKE VARIETY «INTERES

Abstract

The article discusses Jerusalem artichoke variety «Interest, its chemical composition and some useful properties. The production of biologically active additives in the form of powders and extracts on its basis has been substantiated and possible areas of their application have been brought. As a result of the experiments, kinetic dependences of the extraction of dry soluble substances from Jerusalem artichoke were obtained. For the experiments, the feedstock was preliminarily cut into plates 2 mm thick, and then dried on a two-stage convective vacuum-impulse drying to a residual moisture content of 6%. A comparison was made of the extraction process by infusion at a temperature of 20-22°C, heating with constant stirring at a temperature of 55± 3°C and under vacuum on a developed extraction unit. It was found that the most effective in terms of time and concentration of dry soluble substances in solution is extraction using vacuum. Then, vacuum extraction was carried out with hydromodules 1:25, 1:50 and 1: 100 at a temperature of 55±3°C and a pressure of 15-17 kPa, the duration of the impulse action was 0.2-0.5 s. The preferable hydromodule for this variety of Jerusalem artichoke has been established, in which the extraction process takes the least amount of time with the highest concentration of dry soluble substances in the extract.