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학술발표회초록보기

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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Identification of geographical origins of coffee beans by using vibrational spectroscopic methods

등록일
2014년 8월 28일 16시 42분 02초
접수번호
1286
발표코드
ANAL.P-574 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
정회일*, 설다운, 황진영
한양대학교 화학과, Korea
Coffee is one of the most consumed beverages and holds the second in the international trade market next to crude oil. So it is very crucial to have a fast and reproducible evaluation method to check for the authenticity of coffee beans. In this research, infrared and near-infrared spectroscopic methods were used as a tool for the identification of spectral features among various geographical origins and types of coffee beans. Fifty nine different coffee beans were obtained from Africa (Ethiopia, Kenya, Tanzania, etc.), Latin America (Colombia, Guatemala, Brazil, etc.), and Asia (Papua New Guinea, Indonesia). Infrared absorbance spectra of pellet samples with ground coffee bean samples and diffuse reflectance NIR spectra of coffee beans were collected. Principal component analysis (PCA) combined with linear discriminant analysis (LDA) was used for the discrimination of samples according to the types. In addition based on non-parametric method was evaluated for the same purpose. The accurate quality assurance and discrimination of geographical origins of coffee beans will be conducted in this study.

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