휴대용 근적외분광분석기를 이용한 유탕면의 수분 함량 측정 : Infrared(NIR) System = Determination of Water Contents in a Intact Fried Noodle in Oil by Portable Near-Infrarde(NIR) System.

다국어 초록 (Multilingual Abstract)

This experiment was carried out to determine non-destructively water content in a intact fried noodle in oil by portable near-infrared system. Water content was ranged from 0 to 14.3w/w% and the near infrared (NIR) measurements were made on 70 intact samples over the spectral range 1100-1750nm. We found the variation of absorbance band due to OH vibration of water in the noodles depending on the concentration change around 1450nm in the second derivatives spectra. Partial least squares(PLS) regression models were set up using a calibration set(42 E.A.) and a validation set(28 E.A.) between the NIR response and value from loss on dry. Various pretreatments of the spectra were examined: the smallest stnadard error of prediction(0.35%) was obtained using autoscaling spectra over 1100-1700nm. 10 factors were required for the PLS model to give a good relationship between the spectral information and the noodle water content. In order to validate the developed calibration model, routine analyses were performed using other intact noodles. Water contents from the NIR calibration model were compared with the values from loss on dry and the results showed good correlation with those of loss on dry. This study showed that the rapid and non-destructive determination of water content in a intact fried noodle in oil was successfully performed by portable NIR system.

목차 (Table of Contents)

• Abstract
• 서론
• 재료 및 방법
• 실험방법
• 기기
• 계량분석화학
• 결과 및 고찰
• 유탕면의 스펙트럼의 관찰
• 유탕면의 calibration 및 validation 결과
• 유탕면의 일상분석
• 결론
• 참고문헌