Application of FTIR Spectroscopy for Assessment of Green Coffee Beans According to Their Origin

被引：23
|
作者：
Obeidat, S. M. [1 ]
Hammoudeh, A. Y. [1 ]
Alomary, A. A. [2 ]
机构：
[1] Yarmouk Univ, Irbid, Jordan
[2] Islamic Univ Al Madinah Al Munawarah, Al Madinah Al Munawarah, Saudi Arabia
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2018年 / 84卷 / 06期
关键词：
green coffee beans; adulteration; FTIR; principal component analysis; EXTRACT;
D O I：
10.1007/s10812-018-0585-9
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Samples of green coffee beans originating from five different countries were ground and analyzed using FTIR spectra in the region of 600-4000 cm(-1). Successful discrimination of each coffee type based on their origin was achieved applying a PCA algorithm on the obtained IR spectra for all samples. PCA loading plots show that the IR bands at 2850, 2920, and 1745 cm(-1) corresponding to the symmetric, and antisymmetric vibrations of CH2 and the stretching vibration of C=O bond in ester, respectively, are the most significant peaks in distinguishing the origin of the above coffee samples.
引用
收藏
页码：1051 / 1055
页数：5
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