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L Xuesong
G Hristozova
PS Nekhoroshkov
MV Frontasyeva

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L Xuesong
G Hristozova
PS Nekhoroshkov
MV Frontasyeva

International Research Journal of Public and Environmental Health
Vol.2 (11), pp. 182-190, November 2015
ISSN 2360-8803
Available online at
Article 15/ID/JPRH075/ 06 pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

Original Research Article

Neutron activation analysis of constituent elements of edible and medicinal plant of iron stick yam (Dioscorea opposita Thunb)

Li Xuesong, G. Hristozova, P.S. Nekhoroshkov and M.V. Frontasyeva

1Sector of Neutron Activation Analysis and Applied Research, Division of Nuclear Physics, Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Rearch, Dubna 141980, Moscow Region, Russian Federation.
2Northwest Institute of Nuclear Technology, Xi’an 710024, China
3Faculty of Physics, Paisii Hilendarski University, Plovdiv 400, Bulgaria.

*Corresponding Author Email: cedar761107(at)
Tel.: +721638311

date Received: October 15, 2015     date Accepted: November 2, 2015     date Published: November 6, 2015


For the first time conventional and epithermal neutron activation analysis (ENAA) was applied to determine the elemental content of iron stick yam (Dioscorea opposita Thunb), an edible and medicinal plant grown in China, well known for its high nutritional value and salutary effects: anti-aging, anti-tumor, etc. High-resolution HPGe gamma ray spectrometer with Genie2000 analysis software were employed to measure and analyze the gamma-spectra of the irradiated samples. A total of 30 elements were determined at the reactor IBR-2 of FLNP JINR (Na, Mg, Al, S, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Se, As, Br, Sr, Rb, Zr, Ag, In, Sb, I, Ba, Cs, La, Ce, Nd, Eu, Gd, Sm, Tb, Dy, Yb, Tm, Hf, Ta, W, Au, Th, and U ), 11 of which (S, Cl, Br, Rb, Sb, Cs, Nd, Eu, Sm, Au, and U) have never been reported in previous yam studies. Abnormally high concentrations of Al, U, Eu and Nd have been found.

Key words: NAA, iron stick yam, elemental content, Dioscorea opposita Thunb, edible, medicinal plants.

Xuesong et al