Abstract
The study analyzed the biological (antimicrobial and antioxidant) activity of such medicinal plants grown in the Kemerovo region as Leaf mustard (Brassica juncea L.), Stinging nettle (Urtica dioica), Maral root (Rhaponticum carthamoides), Thyme (Thymus serpyllum L.), Purple coneflower (Echinacea purpúrea), Chamomile (Chamomilla recutita L.), Milk thistle (Sílybum mariánum L.), Common marigold (Caléndula officinális), Tansy (Tanacétumá vulgáre), and Common dandelion (Tarináxum officinum). It was found that all investigated plant extracts have antimicrobial properties against the tested strains of microorganisms (E. coli ATCC 25922, S. aureus ATCC 25923, P. vulgaris ATCC 63, C. albicans EMTC 34, L. mesenteroides EMTC 1865). It was proved that all tested extracts of medicinal plants are characterized by a high antioxidant status; according to the tests performed this parameter of the samples varies within the limits from 145.09 to 235.00 mg of ascorbic acids per 1 gram. Both the high concentration level of biologically substances and the presence of antimicrobial and antioxidant characteristics of the studied herb extracts from the selected medicinal plants make it possible to recommend their use as components of feed additives for agricultural animals.
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