Morphometric parameters of R. Dikuscha berries and the content of biologically active substances in relation to the place of growth

Antioxidants in plants have specific organ and tissue tropisms and different points of application. The physiological realisation of antioxidant effects is closely related to the chemical and spatial structure of their molecule: each functional group within the molecule has a specific molecular target - a kind of “point of activity”. This approach opens up the prospect of developing new, more effective antioxidants [1]. Black-fruited berries are an excellent source of the pigments anthocyanidins - polyphenolic compounds with unique antioxidant activity - ascorbic acid and other essential vitamins. Dark berry seeds are rich in unsaturated fatty acids. At the same time, berries have a unique composition of micro- and macroelements such as potassium, magnesium, zinc, manganese and copper, which are active participants in the redox reactions of the body and ensure the work of all links of the antioxidant defence of the body [2]. Among all dark berries, the fruits of black currants and their relatives have not only a higher content of ascorbic acid and a rich mineral composition, but also the densest skin, which accumulates the most promising antioxidant group of polyphenols - anthocyanidins. Such a combination on the principle of synergism represents the prospect of high efficiency of antioxidant action of the phytocomplex. The aim of the research was to determine the content of biologically active substances in the fruits of the wild currant Ribes dikuscha Fisch. Furthermore, the morphometric parameters of R. dikuscha fruits were described as a function of growing location. In this research, for the first time the content of biologically active substances with antioxidant properties in the fruits of Ribes dikuscha Fisch. was studied; also, a comparative analysis of biologically active substances and morphometric parameters of the R. dikuscha fruits depending on growing places was conducted. It was concluded that there was a negative correlation between the size of the fruits and the total content of low-molecular antioxidants in the berries; on the contrary, there was a positive correlation between the thickness of the outer skin of the fruits and the quantitative content of polyphenolic compounds in Ribes dikuscha Fisch.

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