Comparison of tocopherol contents in Adzuki bean (Vigna angularis) genotypes traits
2013
Eun, Hye, K. (Konkuk Univ., Seoul (Korea). Dept. of Applied Life Science) | Seguin, P. (McGill Univ. (Canada). Dept. of Plant Science) | Ju-Hyun, L. (Konkuk Univ., Seoul (Korea). Dept. of Applied Life Science) | Ill-Min, C.
The objective of this study was to determine the tocopherols concentration of 150 adzuki bean [Vigna angularis (Willd.) Ohwi and Ohashi] genotypes. Adzuki beans a darker seed coat had a 4% higher total tocopherol concentration than light colored seeds, seed color also impact delta-tocopherol and gamma-tocopherol concentrations. Smaller seeds had a 3% higher total tocopherol concentration than large seeds, differences among seed size groups being also observed for gamma-tocopherol and alpha-tocopherol. Seeds from Japan and China had a 10% greater delta-tocopherol concentration, while seeds from Korea had a 7% higher gamma-tocopherol concentration. Improved adzuki bean genotypes had a higher total tocopherol concentration compared to wild and landrace genotypes; differences between improvements status groups being observed for tocopherols except alpha-tocopherol. This study demonstrates that seed color, seed size, origin and improvement status impact adzuki bean tocopherol concentrations.
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