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        Quantitative Dissection of Antioxidative Bioactive Components in Cultivated and Wild Sesame Germplasm Reveals Potentially Exploitable Wide Genetic Variability

        Niti Pathak,Ashwani Kumar Rai,Supradip Saha,Suresh Walia,Soumitra Kumar Sen,Kangila Venkataraman Bhat 한국작물학회 2014 Journal of crop science and biotechnology Vol.17 No.3

        Sesame (Sesamum indicum L.) is one of the oldest oilseed crops grown in India and worldwide. This oilseed crop has high nutritionalvalue due to the presence of antioxidants such as lignans and tocopherols. Screening of oilseed germplasm for important nutritionalattributes is of prime importance in quality breeding programs. In the present study, the content of lignans (sesamin andsesamolin) and tocopherol homologues (α-, γ -, and δ-tocopherol) was determined using reverse phase HPLC (RP-HPLC) in 143sesame lines collected from diverse agro-ecological zones of India. Exploitable levels of sesamin, sesamolin, γ-, and δ-tocopherolwas observed in the studied sesame lines. Sesamum indicum cultivar CO 1, introgressed line MKN 9, and Sesamum malabaricumshowed high values for sesamin. Exotic and indigenous accessions of S. indicum (EC 542283 and IC 132176, IC 204681, IC 204773)showed high sesamolin contents. Cultivars, AKT 64, AKT 101, Phule til 1, and Tapi A showed high values for γ - and δ-tocopherol. The average content of sesamin and sesamolin was 0.86 and 0.50 mg g-1 seed, respectively. The average tocopherol content (292 μgg-1 seed) found in this study indicates the presence of a high amount of tocopherol in Indian sesame germplasm. Superior genotypesof sesame reported in this study could be utilized in sesame breeding programs for enhancing oil yield and nutritional attributes

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