STUDYING THE ANTIOXIDANT ACTIVITY OF WATER EXTRACTS FROM VEGETABLE RAW MATERIALS

Abstract

Phenolic compounds of plants have numerous biological functions and have a diverse effect on living organisms, which determines their use in various fields and the relevance of their research. This work presents a study of the antioxidant activity of phenolic compounds of some plants growing on the territory of Republic of Armenia. To achieve this goal, studies were carried out to obtain preparations containing bioflavonoids, taking into account the plant resources of Republic of Armenia. Since the ultimate goal of research is the use of plant extracts containing phenolic compounds as food antioxidants, studies have been carried out with extracts obtained using water as the safest, most economical and environmentally friendly solvent. Based on the experiments carried out, it was concluded that for the isolation of phenolic compounds from the studied plants, it is optimal to boil raw materials and water taken in a ratio of 1:10 for 1 hour.

The presence of phenolic compounds in the composition of the obtained extracts was established by qualitative reactions, and the antioxidant activity of the investigated extracts was studied using two methods - the spectrophotometric method based on the autooxidation reaction of adrenaline and the method of redox titration using the potassium iodide - hydrogen peroxide system in an acidic medium.