Variation of Flavonoids Contents in Plant Parts of Mungbean

녹두 식물체 부위별 Flavonoids 함량 변화

  • Kim, Dong-Kwan (Jeollanamdo Agricultural Research and Extension Services) ;
  • Chon, Sang-Uk (EFARINET Co. Ltd., TBI Center, Chosun University) ;
  • Lee, Kyung-Dong (Department of Oriental Medicine Materials, Dongshin University) ;
  • Kim, Jung-Bong (National Institute of Agricultural Biotechnology, RDA) ;
  • Rim, Yo-Sup (College of Bio Industry Science, Sunchon National University)
  • Published : 2008.09.30

Abstract

This study carried out to investigate the variation of flavonoids contents in mungbean (Vigna radiata L.) according to plant parts, harvesting time, growth stage, and sowing time. Vitexin and isovitexin were found only in the seeds but not in the leaves, petioles, stems, and roots. Vitexin and isovitexin in seeds were detected only in the seed coat at concentration of 51.1 and $51.7\;mg{\cdot}g^{-1}$, respectively, but not in the cotyledon. There were no differences in the content of vitexin and isovitexin in mungbean seeds according to early, recommended and late harvesting times. Rutin in leaves was isolated and identified as a functional substance. The content of rutin was the highest in the leaves and higher in the order of petioles and stems. However, there was no rutin in the seeds, roots, and pods. The highest rutin content in the leaves, petioles and stems was observed at the 3rd leaf stage, which was higher in the order of the 5th and 7th leaf stage.

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