Dynamics of the accumulation of antioxidants in the leaves of blackberry of the blackberry in fort № 5 (Kaliningrad)

Anokhina Irina Nikolaevna, Skrypnik Lyubov Nikolaevna

Medicinal plants are a valuable source of new pharmaceuticals and the basis for the development of functional products. An urgent task is the study of medicinal plants with a sufficiently rich raw material base and possessing antioxidant activity. Purpose. The aim of the work was to study the dynamics of accumulation of the total amount of antioxidant compounds in the leaves of blackberry rhizome (Rubus caesius L.), growing on the territory of Fort No. 5 in Kaliningrad. Method. Antioxidant activity was determined by the ability of plant extracts to bind to the stable radical of 2,2-diphenyl1-picrylhydrazyl (DPPH). Results. It was found that the maximum amount of antioxidants accumulated in the leaves in the autumn period (September-October). The change in the level of antioxidant activity depended on the influence of environmental factors on plants. According to the results of the correlation analysis, it was revealed that the greatest influence was exerted by the amount of precipitation. Conclusion. Given the wide distribution of Rubus caesius L. in the Kaliningrad region, this species can be recommended as a source of biologically active substances.

Keywords:blackberry gray, antioxidant, antioxidant activity, medicinal plants, 2,2-diphenyl1-picrylhydrazyl.