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

被引：22

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

页码：1051 / 1055

页数：5

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