Ecological and Phytochemical Features of Crataegus fallacina Klokov under Conditions of Technogenic Pollution

This article analyzes the effect of technogenic pollution on the content of the main groups of biologically active substances (flavonoids, anthocyanins, hydroxycinnamic acids, procyanidins, tannins, carotenoids, ascorbic acid, and free organic acids) in the fruits and leaves of Crataegus fallacina Klokov, a representative of the natural flora of the Donetsk region. The content of heavy metals, such as cadmium, lead, and mercury (mobile forms), in the soil and plant materials is determined and the environmental safety of the raw materials is evaluated. The most significant changes under conditions of the technogenic environment are observed for the content of tannins in the leaves of C. fallacina and procyanidins in its fruits; this makes it possible to use these parameters for screening the degree of impact of an urbanized environment on plants. The conformity of the raw materials of C. fallacina to the requirements of the regulatory documents for the content of active substances is evaluated. It is shown that these raw materials have a high antioxidant activity, which increases under pollution conditions.