COMPARATIVE CHARACTERISTICS OF THE INFLUENCE OF TECHNOLOGY OF EXTRACTION ON ANTIOXI-DANT PROPERTIES FOR THE FARRY AND FLOWERS OF THE TENDER (CRATAEGUS)

Abstract

The purpose of this work is to determine the most optimal method for extracting hawthorn fruits and flowers (Crataegus) with antioxidant properties. Flowers hawthorn rich in chemicals (choline, essential oil, acetylcholine, trimethylamine, flavone glycosides, caffeic, chlorogenic, ursolic and other various acids) and hawthorn fruit consist of fatty oil, triterpene saponins, choline, acetylcholine, tannins, sorbitol and organic acids. In order to determine the most optimal method for extracting a complex of substances with antioxidant properties from hawthorn fruit and flower extracts, the content of dry substances, phenols, flavonoids was studied, and antioxidant activity was determined using two methods: by trapping free radicals and by using the FRAP (restoring force) method. By all indicators (the content of dry substances, phenols, flavonoids, antioxidant activity), studied in the work, hawthorn flowers had high values. In this work, three extraction technologies were used: traditional – infusion (37 °С, 2 h), and innovative – using microwave (800 W, 1 min) and ultrasonic irradiation (0.5 W, 2 h). Of all the types of extraction considered, the most efficient and effective, according to the results of experiments, is extraction using ultrasonic radiation.