Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Aucubin, Catalpol, and GABA Contents in Different Plant Parts of Rehmannia glutinosa Cultivars

지황 품종의 부위별 Aucubin, Catalpol, GABA 함량

  • 이상훈 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 윤정수 (인천대학교 생명과학부) ;
  • 김재광 (인천대학교 생명과학부) ;
  • 박춘근 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김성철 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 정찬식 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장재기 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김연복 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2017.01.16
  • Accepted : 2017.02.23
  • Published : 2017.02.28
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Abstract

Background: Rehmannia glutinosa is a perennial herb belonging to the family Scrophulariaceae. Its root has been utilized as a traditional medicine but the aerial parts (flower, flower stalk, leaf) are not used. We aimed to determine the content of three compounds [aucubin, catalpol, and ${\gamma}$-aminobutyric acid (GABA)] in the different organs of R. glutinosa cultivars (Dakang, Tokang, and Suwon 9) Methods and Results: The flower, flower stalk, leaf, and root of R. glutinosa were harvested at the end of August. The aucubin and catalpol contents were analyzed by LC/MS, whereas the GABA content was analyzed by GC/MS. The aucubin content was the highest in the leaf, while catalpol and GABA were the highest in the flower. The aucubin contents of leaf in Dakang, Tokang, and Suwon 9 were 1.43, 0.81, and 1.07 mg/g, respectively. The catalpol contents of flower in Dakang, Tokang, and Suwon 9 were 41.06, 28.78, and 37.48 mg/g, respectively, the GABA contents were 0.79, 0.76, and 0.65 mg/g, respectively. Conclusions: The aucubin, catalpol, and GABA contents were higher in the leaf and flower than that in the root. This study show that R. glutinosa leaf and flower can be used as a potential supplement.

Keywords

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