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Analysis of quercetin in extract of Hovenia dulcis Thunb

헛개나무과병추출물 중 퀘르세틴 분석

  • Hu, SooJung (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Oh, Jae-Myoung (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Oh, Hyun-Suk (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Moon, Myung-Hee (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Bae, Yun-Young (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Lee, Sung-Hye (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Kim, Ji-An (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation) ;
  • Koo, Yong-Eui (Nutrition and Functional Food Research Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation)
  • 허수정 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 오재명 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 오현숙 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 문명희 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 배윤영 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 이성혜 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 김지안 (식품의약품안전평가원 식품위해평가부 영양기능연구팀) ;
  • 구용의 (식품의약품안전평가원 식품위해평가부 영양기능연구팀)
  • Received : 2016.05.23
  • Accepted : 2016.11.25
  • Published : 2016.12.25

Abstract

Based on the Korean Health Functional Food Act, health functional foods are dietary supplements containing nutrients or other substances that have nutritional or physiological effects. Since generic health functional food items have been expanded, this project was performed to develop a standardized analytical method of examining such sale items. The method exhibited high linearity in the quercetin calibration curve ($R^2$ > 0.999) over concentrations of $0-40{\mu}g/mL$. The limits of detection and quantitation for quercetin were $0.12{\mu}g/mL$ and $0.36{\mu}g/mL$, respectively, while quercetin recovery was 97.1-105.4 % with standard deviations of 1.15-3.11 %. To verify the accuracy of the analytical methods, the labeled amounts of purchased health functional foods were monitored. The recovery rate for multiple quercetin concentrations ranged from 82.5-105.1 % of the labeled amounts. Thus, the new method was suitable for all cases.

"건강기능식품에 관한 법률"에 따라 건강기능식품이란 인체에 유용한 기능성을 가진 원료나 성분을 사용하여 제조한 식품을 말한다. 또한, 건강기능식품은 고시화한 원료와 영업자가 개별적으로 신청한 개별인정형 원료로 나누어진다. 그 중 개별인정형 원료의 시험법은 고시화를 위해 표준화가 필요하며 2가지 이상의 원료가 복합적으로 혼합되어 제조될 경우 제품에 대한 적용성 검토가 요구된다. 개별인 정형 원료 중 헛개나무과병추출물의 지표성분인 퀘르세틴을 대상으로 전처리방법을 표준화하였으며, 표준화한 퀘르세틴 시험법의 밸리데이션을 수행한 결과 회수율은 97.1~105.4%, 표준편차는 1.15~3.11%였다. 검량선의 직선성은 결정계수($R^2$)가 0.999 이상을 나타냈고 검출한계는 $0.12{\mu}g/mL$, 정량한계는 $0.36{\mu}g/mL$를 나타냈다. 표준화한 퀘르세틴 시험법의 적용성 검토를 위해 헛개나무과병추출물의 유통제품을 수거하여 분석한 결과, 퀘르세틴 표시 함량 대비 82.5~105.1%로 적합하였다.

Keywords

References

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