DEVELOPMENT AND VALIDATION OF METHOD FOR ISOLATION AND QUANTITATIVE DETERMINATION OF WATER-SOLUBLE POLYSACCHARIDES FROM SUNFLOWER ROOTS OF ONE-YEAR-OLD

The aim of the study was to develop and validate an express method for the isolation and quantitative determination of water-soluble polysaccharides from the roots of sunflower of a one-year-old. To accelerate the process of extracting biologically active substances from the roots of one-year-old sunflower, as well as increasing the yield of water-soluble polysaccharides, it was decided to use an ultrasonic bath. Varying the process parameters, it was possible to select the optimal conditions for extracting water-soluble polysaccharides of sunflower roots of one-year-old under ultrasound treatment conditions: crushing of raw materials 0.5–1.0 mm, temperature – 80 °C, extraction rate – 3, duration of extractions - 30 minutes, ultrasound frequency – 30 kHz, ratio of raw materials and extractant 1 g per 15 ml. The proposed technique allows intensifying the process of producing water-soluble polysaccharides from sunflower roots of one-year old and reducing the time spent on it to 5–6 hours, as well as increasing the product yield to 16.29% in terms of absolutely dry raw materials. The developed technique is precision in the conditions of repeatability, correct, stable and has a fairly rigid linear dependence of the mass of the sediment on the mass of the analyzed raw materials in gravimetric determination of water-soluble polysaccharides in the roots of sunflower of a one-year-old. The procedure can be used for express analysis of the quality of sunflower roots of one-year old, as well as in industrial production of water-soluble polysaccharides from this kind of raw material.