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[Mineral content in the wild onion species and their nutritive value]
F V Golubev1, N A Golubkina, Iu N Gorbunov
1Tsitsin Main Botanic Garden, Russian Academy of Sciences, Moscow, 127276 Russia.
Abstract:
The accumulation of 11 microelements (Fe, Zn, Cu, Co, Mn, Ni, Pb, Cd, Sr, Cr, and Se) by 7 wild onion species of the genus Allium was studied. A. flavescens Bess possesses the higher accumulating capability; it accumulates five of eleven microelements (Cr, Ni, Cu, Zn, and Se) with biological accumulation coefficient (BAC) exceeding 1 and also contains high levels of Fe, Co, and Mn. These features enable this species to be the most promising for the nutrition adjustment of human commons with above-mentioned microelements primarily with Cr, which content in 100 g onion leaves achieves 84% of commons. A. fistulosum L., A. odorum L., and broad-leaved A. nutans form specifically accumulate Cu, Zn, and Se. A. montanum Schmidt is characterized by the accumulation of Zn. A. angulosum and A. schoenoprasum are xharacterized by the accumulation of Se. The broad-leaved forms of A. schoenoprasum L., A. nutans L., and A. odorum L. compared with their narrow-leaved forms accumulate more amounts of Zn and Cu.
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