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Validation of Method Determining Marmesin in Broussonetia kazinoki Extract

닥나무 추출물의 Marmesin 성분 분석법 검증

  • Kwon, Jin Gwan (Gyeonggi Institute of Science & Technology Promotion) ;
  • Seo, Changon (Gyeonggi Institute of Science & Technology Promotion) ;
  • Hong, Seong Su (Gyeonggi Institute of Science & Technology Promotion) ;
  • Seo, Dong-Wan (College of Pharmacy, Dankook University) ;
  • Oh, Joa Sub (College of Pharmacy, Dankook University) ;
  • Kim, Jin Kyu (Gyeonggi Institute of Science & Technology Promotion)
  • 권진관 ((재)경기과학기술진흥원) ;
  • 서찬곤 ((재)경기과학기술진흥원) ;
  • 홍성수 ((재)경기과학기술진흥원) ;
  • 서동완 (단국대학교 천안캠퍼스 약학대학) ;
  • 오좌섭 (단국대학교 천안캠퍼스 약학대학) ;
  • 김진규 ((재)경기과학기술진흥원)
  • Received : 2016.07.20
  • Accepted : 2016.08.19
  • Published : 2016.11.30

Abstract

An HPLC analysis method was developed for standard determination of marmesin as a functional health material in Broussonetia kazinoki extract. HPLC was performed on a $C_{18}$ Kromasil column ($4.6{\times}250mm$, $5{\mu}m$) with a gradient elution of 0.1% (v/v) trifluoroacetic acid and acetonitrile at a flow rate of 1.0 mL/min at $30^{\circ}C$. The analyte was detected at 330 nm. The HPLC method was validated in accordance with International Conference on Harmonization guidelines for analytical procedures with respect to specificity, precision, accuracy, and linearity. The limit of detection and quantitation were 6.2 and $18.6{\mu}g/mL$, respectively. Calibration curves showed good linearity ($r^2$>0.9999), and the precision of analysis was satisfactory (less than 0.3%). Recoveries of quantified compound ranged from 100.35 to 101.18%. This result indicates that the established HPLC method is very useful for the determination of marker compounds in B. kazinoki extracts.

본 연구는 HPLC를 이용하여 닥나무 추출물을 건강기능식품 원료로 개발하기 위하여 지표성분인 marmesin의 분석법 설정과 분석법에 대한 검증을 하고자 하였다. 표준액과 닥나무 추출물은 다른 물질의 간섭 없이 분리되었으며, 표준액과 추출물의 피크 유지시간이 일치한 spectrum을 나타내었다. 또한, blank에서 표준액과 겹치는 피크가 없는 것으로 특이성을 확인하였다. 검량선의 상관계수($R^2$)는 0.9999로 모두 양호한 직선성을 보였으며, 직선상의 검출한계는 $2.8{\sim}6.2{\mu}g/mL$였고 정량한계는 $8.4{\sim}18.6{\mu}g/mL$로 나타났다. 닥나무 추출물 1.3, 2.6, 3.9 mg/mL의 세 농도의 회수율은 100.35~101.18%였으며 정밀도는 0.27~0.30%로 나타나 정밀도 2.0% 이하로서 정확성이 있음을 알 수 있었다. 정밀성은 0.04~0.30%의 정밀도를, 실험실 내 정밀성에서는 0.03~0.30%의 정밀도를 나타내었고 intra-day에서의 정밀도는 0.25~0.42%, inter-day에서는 0.32~0.70%의 정밀도를 나타내어 닥나무 추출물의 지표성분 marmesin의 분석법은 적합한 시험법임이 검증되었다. 본 분석법은 닥나무 추출물의 건강기능식품 원료 개발을 위한 기초자료로 활용될 것으로 생각한다.

Keywords

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