Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Development of Prediction Model for Total Dietary Fiber Content in Brown Rice by Fourier Transform-Near Infrared Spectroscopy

FT-NIR spectroscopy를 이용한 현미의 총 식이섬유함량분석 예측모델 개발

  • Lee, Jin-Cheol (Biotechnology Industrialization Center, Dongshin University) ;
  • Yoon, Yeon-Hee (Biotechnology Industrialization Center, Dongshin University) ;
  • Kim, Sun-Min (Biotechnology Industrialization Center, Dongshin University) ;
  • Pyo, Byeong-Sik (Biotechnology Industrialization Center, Dongshin University) ;
  • Eun, Jong-Bang (Department of Food Science and Technology and Biotechnology Research Institute, Chonnam National University)
  • 이진철 (동신대학교 생물자원산업화지원센터) ;
  • 윤연희 (동신대학교 생물자원산업화지원센터) ;
  • 김선민 (동신대학교 생물자원산업화지원센터) ;
  • 표병식 (동신대학교 생물자원산업화지원센터) ;
  • 은종방 (전남대학교 식품공학과.생물공학연구소)
  • Published : 2006.04.01
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Abstract

Fourier transform-near infrared spectroscopy (FT-NIRS) was evaluated for determination of total dietary fiber (TDF) content of brown rice. Enzymatic-gravimetric method was suitable to obtain reference values for calibration of NIR at 1,000-2,500 nm range. Standard error of laboratory procedure ranged 0.17 to 0.72%. Partial least square (PLS) regression was used to develop the calibration equations. Regression was performed automatically using NIRCal chemometric software. Accuracy of prediction model for TDF content was certified for regression coefficient (r), standard error of estimation (SEE) and standard error of prediction (SEP), showing 0.9780, 0.0636, and 0.0642, respectively. This prediction model can be used for determination of TDF in brown rice and would be useful for real-time analysis in food industry.

분석이 번거로웠던 현미의 총 식이섬유(TDF) 함량을 신속하면서도 친 환경적인 비파괴 분석방법인 FT-NIRS를 이용하여 예측 모델을 개발하였다. 현미는 국내산으로 전남 지방에서 재배된 47개 품종(516개 시료)에 대해서 AOAC 방법에 준한 효소법에 의해 각 측정 시료별 TDF 함량을 분석하였다. 습식 분석된 TDF 함량의 분석오차범위는 0.17-0.72% 이었다. FT.NIRS로 측정된 스렉트럼의 검량식은 빛의 산란 효과를 최소화하기 위해 수학적 처리를 하였고, 몇 개의 특정 파장이 아닌 전 파장 영역(1,000-2,500nm)에 대해서 PLS법으로 작성하였다 회귀분석과 검량식은 NIRCal chemometric software에 의해 작성되었다. 얻어진 검량식의 정확도는 상관계수(r), SEE 및 SEP로 확인하였다. 현미 중 총 식이섬유 함량에 대한 회귀분석을 행한 결과, 상관계수는 0.9780, SEE는 0.0636, SEP는 0.0642로 측정 정확도가 우수함으로 현장 적용을 위한 실용화도 가능할 것으로 판단된다.

Keywords

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