Bączek K., Węglarz Z. and Przybył J.L.

Underground organs of Eleuthero (Eleutherococcus senticosus /Maxim. et Rupr./ Maxim.) are classified as a drug with adaptogenic activity. Extracts from these organs stimulate the immune system, improve stamina, physical capacity and mental activities. This raw material known as a Eleutherococci radix consists of two distinct parts i.e. rhizomes and roots. Taking into consideration the question of standardization of herbal medicinal products, a chemical evaluation of rhizomes and roots has been undertaken. The content of eleutherosides B and E, the most important from the pharmacological point of view, active compounds of Eleuthero was markedly higher in rhizomes but phenolic acids and sterols were higher in the roots. A high yield and a good quality of both rhizomes and roots of Eleuthero may be obtained from 3 or 4-years-old plants.

Key words: Adaptogen, eleutheroside B and E, phenolic acids, sterols, standardization