The study of the characteristic of the accumulation of biologically active substances by some wild herbaceous plants

In recent years much attention is given to the search for new medicinal plants and an elaboration of preparation from plant raw material that is used in ethnomedicine and for production of biologically active compounds (BAC). The forest herbaceous plants from Raifskiy district in Volgo-Kama National Park, and group of weed plants from urban and suburb places were exanimated for BAC content. In the group of herbaceous plants the flavonoid content varied from 1.10 to 15.85% in dry matter; the sum of chlorophylls content varied from 1.13 to 3.59 mg/g of dry matter. Among plant species exanimated: stone bramble, European wild ginger, eagle fern and white goosefoot were not regarded as pharmacopoeial plants, but they were characterized by significantly high content of flavonoids 2.74-4.26%. Flavonoid and chlorophyll contents in the tissues of observed plants changed during of process of ontogenesis in most species and were highest in the phase at the beginning of flowering and during flowering time. It was shown that antioxidant and flavonoids contents increased while manmade load rose as noticed in bird-weed (Polygonum aviculare L.). Thus, the examined different species of herbaceous plants can be regarded as promising sources of BAC.