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2024 Vol.37, Issue 2 Preview Page

Research Article

Polyphenol Profiling and Comparison of Extraction Solvents on Useful Component Content and Antioxidant Activity of Rhododendron micranthum Shoot

꼬리진달래 신초의 폴리페놀 프로파일링과 추출용매에 따른 유용성분 함량 및 항산화 활성 비교

Jungmok Kang1
,
Yong-Woo Park1
,
Eun-Suk Jung1
,
Daeho Choi1
강 정목1
,
박 용우1
,
정 은숙1
,
최 대호1
1Researcher, Forest Bio Center, Chungcheongbuk-do Forest Environment Research Center, Okcheon 29061, Korea
1충북산림환경연구소 산림바이오센터, 연구원
*Corresponding Author
1 April 2024. pp. 110-119
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Abstract

This study was conducted to provide information on the possibility of using Rhododendron micranthum as resource plant. Through polyphenol profiling of R. micranthum shoot extract, useful components were selected and the content of useful components and antioxidant activity by extraction solvent were compared. As a result, 37 polyphenol compounds were identified in R. micranthum shoot extract through LC-ESI-MS analysis. Contents by extraction solvent were compared of chlorogenic acid, astragalin, myricetin, and afzelin. Chlorogenic acid was highest at 6.57±0.12 ㎎/g in the ethanol extract, astragalin was 2.29±0.02 ㎎/g in the ethanol extract, myricetin was 4.77±0.06 and 4.52±0.27 ㎎/g in the methanol, ethanol extracts, and afzelin was highest at 0.10±0.01 ㎎/g in the methanol extract. Total polyphenol content of the R. micranthum shoot extract according to the extraction solvent was highest in the ethanol extract at 80.01±2.36 ㎎/g, and total flavonoid content was also highest in the ethanol extract at 78.08±3.44 ㎎/g. The IC50 value of DPPH radical scavenging activity according to the extraction solvent of R. micranthum shoot was lowest in methanol extract at 943.57±10.68 ㎎/L, and the IC50 value of ABTS radical scavenging activity was also lowest in methanol extract at 641.60±7.58 ㎎/L.

Keywords
Afzelin
Astragalin
Chlorogenic acid
LC-ESI-MS
Myricetin
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 37
  • No :2
  • Pages :110-119
  • Received Date : 2024-02-20
  • Revised Date : 2024-03-10
  • Accepted Date : 2024-03-11
  • DOI :https://doi.org/10.7732/kjpr.2024.37.2.110
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