Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Identification of the geographical origin of cheonggukjang by using fourier transform near-infrared spectroscopy and energy dispersive X-ray fluorescence spectrometry

근적외선분광분석기 및 에너지 분산형 X선 형광분석기를 이용한 청국장 원산지 판별

  • Kang, Dong-Jin (Experiment Research Institute of National Agricultural Products Quality Management Service) ;
  • Moon, Ji-Young (Experiment Research Institute of National Agricultural Products Quality Management Service) ;
  • Lee, Dong-Gil (Experiment Research Institute of National Agricultural Products Quality Management Service) ;
  • Lee, Seong-Hun (Experiment Research Institute of National Agricultural Products Quality Management Service)
  • 강동진 (국립농산물품질관리원 시험연구소) ;
  • 문지영 (국립농산물품질관리원 시험연구소) ;
  • 이동길 (국립농산물품질관리원 시험연구소) ;
  • 이성훈 (국립농산물품질관리원 시험연구소)
  • Received : 2016.05.23
  • Accepted : 2016.08.02
  • Published : 2016.10.31
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Abstract

This study was conducted to identify the geographical origin of soybeans in Cheonggukjang by analyzing its organic components and inorganic elements with Fourier transform near-infrared spectroscopy (FT-NIRS) and with energy dispersive X-ray fluorescence (ED-XRF) coupled with multivariate statistical analysis. For method development, 280 samples from various regions were collected and analyzed. The discriminant accuracy for the developed methods was 97.5% for FT-NIRS and 98.0% for ED-XRF with multivariate statistical analysis. A validation test confirmed the discriminant accuracy to be 96.3% for FT-NIRS and 95.0% for ED-XRF. Overall, the results showed that methods using FT-NIRS and ED-XRF could be used to identify the geographical origin of Cheonggukjang.

근적외선분광분석기와 에너지 분산형 X선 형광분석기를 이용한 분석방법을 개발하여 각각 97.5, 98.0%의 높은 정확도의 판별식을 확립하였고, 시중 유통 시료를 분석하여 검증한 결과 각각 96.3, 95.0%의 판별 정확도를 확인하였다. 이상의 연구 결과를 통하여 근적외선분광분석기와 에너지 분산형 X선 형광분석기를 이용하여 청국장 원산지 판별이 가능함을 확인하였고 이는 유기성분 함량에 따른 근적외선 흡광도와 무기성분 함량에 따른 X선 형광에너지 강도가 국내산과 수입산 간에 차이가 있기 때문으로 사료된다.

Keywords

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