OPTIMIZATION OF THE METHOD OF ULTRASONIC EXTRACTION OF BIOLOGICALLY ACTIVE COMPOUNDS WITH AN ALCOHOL-WATER MIXTURE FROM THE FRUITS OF VACCINIUM VITIS-IDAEA L., GROWING ON THE KOLA PENINSULA

Abstract

Lingonberry (Vaccinium vitis-idaea L.) is a profusely fruiting evergreen berry shrub, which is a hypoactic forest species, growing throughout the Kola Peninsula. Fruits have a number of significant therapeutic properties, such as antioxidant, antitumor, neuroprotective, decongestant, antibiotic, due to a significant content of phenolic compounds. The process of complete extraction of polyphenolic components from a complex plant matrix requires the development of extraction conditions aimed at maximum mass transfer of target components with minimal destruction of compounds. In connection with the prospects of using the fruits of lingonberry plants in the pharmaceutical and cosmetology industries, in this work, for the first time, optimization of the conditions of the method of ultrasonic extraction with a water-ethanol mixture using single-factor analysis and the Box-Benken algorithm was carried out. The kinetics of the extraction process is approximated by the second-order reaction equation. The optimal duration of extraction, the concentration of the extractant, the power of ultrasonic exposure, the diameter of the fractions of plant raw materials, the hydromodule and the extraction temperature were determined. The total content of polyphenols and antioxidant activity, as well as the degree of inhibition of free radicals, were determined. The results obtained can be used in the development of technologies for the production of components for use in the pharmaceutical and cosmetology industries.