포도와 포도 가공품에 함유되어 있는 trans-resveratrol의 함량 분석

Analysis of trans-Resveratrol Contents of Grape and Grape Products Consumed in Korea

  • 김대중 (충북대학교 식품공학과, 생물건강산업개발연구센터) ;
  • 김상균 (충북대학교 식품공학과, 생물건강산업개발연구센터) ;
  • 김명희 (한국식품개발연구원) ;
  • 이희봉 (충북대학교 식품공학과, 생물건강산업개발연구센터) ;
  • 이준수 (충북대학교 식품공학과, 생물건강산업개발연구센터)
  • Kim, Dae-Jung (Department of Food Science and Technology, Research Center for Bioresource and Health, Chungbuk National University) ;
  • Kim, Sang-Kyun (Department of Food Science and Technology, Research Center for Bioresource and Health, Chungbuk National University) ;
  • Kim, Myung-Hee (Korea Food Research Institute) ;
  • Lee, Hee-Bong (Department of Food Science and Technology, Research Center for Bioresource and Health, Chungbuk National University) ;
  • Lee, Jun-Soo (Department of Food Science and Technology, Research Center for Bioresource and Health, Chungbuk National University)
  • 발행 : 2003.10.01

초록

본 연구는 생물학적, 비생물학적인 스트레스에 대한 방어물질중의 한가지인 trans-resveratrol를 포도와 포도가공품(포도주, 포도쥬스)으로부터 분석하는 방법을 확립하였다. trans-Resveratrol 기기분석 조건은 다음과 같다. 분석 column은 Nucleosil 100-5 C18을 사용하였으며 이동상은 acetonitrile: water(40:60, v/v)로서 UV검출기(306 nm)를 이용하여 0.3 mL/min의 유속으로 측정하였다. 분석한 결과, 재현성과 반복성의 CV%는 10%이하였으며, 회수율은 $90{\sim}110%$이었다. 또한, 포도, 포도주 그리고 포도쥬스의 최소검출한계는 14.5 ng/g, 3.62 ng/mL 그리고 4.02 ng/mL이고, 최소정량한계는 14.8 ng/g, 3.69 ng/mL 그리고 4.10 ng/mL이었다. 표준물질인 trans-resveratrol 농도가 $0.048{\sim}2.4\;{\mu}g/mL$일때 $R^2$ 값은 0.999이었다. 32품종의 포도, 9종류의 포도주 그리고 9종류의 포도쥬스 내의 trans-resveratrol 함량은 각각 $0.76{\sim}207.14\;{\mu}g/100\;g$, $5.41{\sim}275.66\;{\mu}g/L$ 그리고 $63.25{\sim}751.55\;{\mu}g/L$로 분석되었다.

Resveratrol is natually occurring phytoalexin compounds produced by grape berries, peanuts, and their products in response to stress such as fungal infection, heavy metal ions or UV irradiation. The objective of this study was to develop a reliable high-performance liquid chromatographic method for the quantitative determination of trans-resveratrol in grape and its products. The trans-resveratrol was separated isocratically on Nucleosil 100-5 C18 column, using a mobile phase containing acetonitrile : water (40 : 60, v/v), detected by UV detector at 306 nm and the flow rate was 0.3 mL/min. Under this analytical condition, the recoveries of trans-resveratrol in grape, wine, and grape juice were 92.35, 104.72, and 91.08, respectively. Limit of detection in grape, wine, and grape juice were 14.5 ng/g, 3.62 ng/mL, and 4.02 ng/mL. Also, limit of quantitation in grape, wine, and grape juice were 14.8 ng/g, 3.69 ng/mL, and 4.10 ng/mL. Assay values of 32 grape varieties, 9 wines, and 9 grape juices were ranged from trace amount to $207.1\;{\mu}g/100\;g$, from 5.4 to $275.7\;{\mu}g/L$, and from 63.3 to $751.6\;{\mu}g/L$, respectively.

키워드

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