Mineral Compositions of Korean Wheat Cultivars
2013
Choi, I.D., RDA, Jeongbuk, Republic of Korea | Kang, C.S., RDA, Jeongbuk, Republic of Korea | Hyun, J.N., RDA, Jeongbuk, Republic of Korea | Lee, C.K., RDA, Jeongbuk, Republic of Korea | Park, K.G., RDA, Jeongbuk, Republic of Korea
Twenty-nine Korean wheat cultivars were analyzed for 8 important minerals (Cu, Fe, Mn, Zn, Ca, K, Mg and P) using Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). A hierarchical cluster analysis (HCA) was applied to classify wheat cultivars, which has a similarity in mineral compositions. The concentration ranges of the micro-minerals Cu, Fe, Mn, and Zn: 0.12∼0.71 mg/100 g, 2.89∼5.89 mg/100 g, 1.65∼4.48 mg/100 g, and 2.58∼6.68 mg/100 g, respectively. The content ranges of the macro-minerals Ca, K, Mg and P: 31.3∼46.3 mg/100 g, 288.2∼383.3mg/100 g, 113.6∼168.6 mg/100 g, and 286.2∼416.5 mg/100 g, respectively. The HCA grouped 6 clusters from all wheat samples and a significant variance was observed in the mineral composition of each group. Among the 6 clusters, the second group was high in Fe and Ca, whereas the fourth group had high Cu, Mn and K concentrations; the fifth cluster was high in Zn, Mg and P. The variation in mineral compositions in Korean wheat cultivars can be used in the wheat breeding program to develop a new wheat cultivar with high mineral content, thus to improve the nutritional profile of wheat grains.
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