Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Analysis of polyethoxylated ascorbic acid using spectrophotometry

분광광도계를 이용한 폴리에톡시레이티드 아스코르빈산 분석법 개발

  • Wu, Zhexue (BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University) ;
  • Liu, Kwang-Hyeon (BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University)
  • Received : 2016.09.05
  • Accepted : 2016.09.12
  • Published : 2016.12.31
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Abstract

We developed a spectrophotometric assay method for polyethoxylated ascorbic acidusing 3-ethyl ascorbic acid as standard material. The analytical method was validated by linearity, accuracy, precision, and stability. The coefficient of variation of the precision of the assay was less than 3.4 %. The linearity of the calibration curves in the desired concentration range is good ($r^2$>0.998). 3-Ethyl ascorbic acid and polyethoxylated ascorbic acid were stable in stock solution at room temperature for up to at least 6 h. The developed assay could be used for the content analysis of polyethoxylated ascorbic acid in samples.

본 연구에서는 3-ethyl ascorbic acid를 표준물질로 이용하여, 폴리에톡시레이티드 아스코르빈산의 정량법을 개발하였고, 확립된 시험법으로 시중에서 돼지 및 닭의 면역력 증진과 열에 대한 스트레스 경감제로 유통되고 있는 Poustin-C 검체 내 폴리에톡시레이티드 아스코르빈산의 함량 분석을 실제로 분석하여 시험법의 유효성을 검증하였다. 개발한 분석법의 검증은 직선성, 정확성, 정밀성 및 안정성 시험 등을 통하여 평가하였다. 정밀도 시험은 일내 정밀성과 일간 정밀성으로 나누어 확인하였는데, 일내 및 일간 정밀성은 모두 3.4 % 이내로 매우 우수하였다. 그리고 직선성 실험에서는 상관계수($r^2$)가 0.998 이상으로 우수하였다. 실온에서 6시간까지는 안정하여 실험 도중 분해되지 않음을 확인하였다. 따라서 본 연구에서 개발된 시험법은 검체 내 폴리에톡시레이티드 아스코르빈산의 함량을 분석하기 위한 공정 시험법으로 활용할 수 있을 것으로 사료된다.

Keywords

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