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KMID : 0380620160480050418
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Korean Journal of Food Science and Technology
2016 Volume.48 No. 5 p.418 ~ p.423
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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
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Kang Dong-Jin
Moon Ji-Young
Lee Dong-Gil
Lee Seong-Hun
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Abstract
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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.
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KEYWORD
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Fourier transform near infrared spectroscopy, energy dispersive x-ray fluorescence, geographical origin, cheonggukjang, multivariate statistical analysis
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