Nadezhda Golubkina1*, Vladimir Lapchenko2, Lubov Ryff3, Helene Lapchenko2, Tatiana Naumenko3, Natalia Bagrikova3, Katherine Krainuk3, Olga Kosheleva4, Gianluca Caruso5
1 Federal Scientific Center of Vegetable Production, Selectsionnaya str. 14, VNIISSOK, Odintsovo district,Moscow region 143072 Russia
2Federal Research Centre «A.O. Kovalevsky Institute for Biology of the Southern Seas of RAS»
Branch «T.I. Vyazemsky Karadag Scientific Station — Nature Reserve of RAS», Nauki Street, 24, Kurortnoe, Feodosia, Republic of Crimea, Russia
3Nikitsky Botanical Gardens, Nikita Yalta, 298648, Republic of Crimea, Yalta, Russia
4Institute of Nutrition and Biotechnology, Ustinski pr, 2/14 109240 Moscow, Russia
5Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici (Naples) Italy
*Corresponding author: firstname.lastname@example.org; tel: +7–903–118–50–30
Abstract. The beneficial synergism between selenium (Se) and other antioxidants on human health stimulates the search of new medicinal plants with high antioxidant activity (AOA) and Se accumulation levels. Using fluorimetric method of Se analysis and titrimetric method of total AOA determination monitoring was achieved of 53 species of herbs, 24 species of deciduous and evergreen trees and shrubs and 11 species of conifers grown on the Southern and South–Eastern coast of the Crimean peninsular. Two new Se–hyperaccumulators were indicated among deciduous trees: Tamarix ramosissima and Paliurus spina–christi with leaves Se content 6236 and 1800 µg.kg–1 d.w. respectively. Among herbs 5 new hyperaccumulators were revealed: Artemisia draсunculus cv. Izumrudny, Anthemis tranzscheliana, Cota tinxtoria, Astragalus arnacantha and Limonium gerberi with Se accumulation levels of 23460, 9479, 960, 4110, and 1926 µg.kg–1 d.w. respectively. Medians of Se levels reached 97 µg.kg–1 for conifers, 86.5 µg.kg–1–for deciduous plants and 61 µg.kg–1 – for herbs with the appropriate AOA values: 67, 70. and 49.3 mg–GAE.g–1 d.w. respectively. Tamarix was the only plant with both Se hyperaccumulation abilities and high AOA level (212 mg–GAE.g–1 d.w). High AOA (188–256 mg–GAE.g–1 d.w) and relatively high Se levels (193–236 µg.kg–1) were demonstrated for Pistacia atlantica and Cotinus coggygria.
Keyword: Selenium; antioxidant activity; deciduous evergreen trees and shrubs; conifers; herbs.