PMID- 29201055
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1687-8760 (Print)
IS  - 1687-8779 (Electronic)
IS  - 1687-8760 (Linking)
VI  - 2017
DP  - 2017
TI  - Comparison of Attenuated Total Reflectance Mid-Infrared, Near Infrared, and 
      (1)H-Nuclear Magnetic Resonance Spectroscopies for the Determination of Coffee's 
      Geographical Origin.
PG  - 7210463
LID - 10.1155/2017/7210463 [doi]
LID - 7210463
AB  - The sensorial properties of Colombian coffee are renowned worldwide, which is 
      reflected in its market value. This raises the threat of fraud by adulteration 
      using coffee grains from other countries, thus creating a demand for robust and 
      cost-effective methods for the determination of geographical origin of coffee 
      samples. Spectroscopic techniques such as Nuclear Magnetic Resonance (NMR), near 
      infrared (NIR), and mid-infrared (mIR) have arisen as strong candidates for the 
      task. Although a body of work exists that reports on their individual 
      performances, a faithful comparison has not been established yet. We evaluated 
      the performance of (1)H-NMR, Attenuated Total Reflectance mIR (ATR-mIR), and NIR 
      applied to fraud detection in Colombian coffee. For each technique, we built 
      classification models for discrimination by species (C. arabica versus C. 
      canephora (or robusta)) and by origin (Colombia versus other C. arabica) using a 
      common set of coffee samples. All techniques successfully discriminated samples 
      by species, as expected. Regarding origin determination, ATR-mIR and (1)H-NMR 
      showed comparable capacity to discriminate Colombian coffee samples, while NIR 
      fell short by comparison. In conclusion, ATR-mIR, a less common technique in the 
      field of coffee adulteration and fraud detection, emerges as a strong candidate, 
      faster and with lower cost compared to (1)H-NMR and more discriminating compared 
      to NIR.
FAU - Medina, Jessica
AU  - Medina J
AUID- ORCID: 0000-0001-6123-3068
AD  - Chemistry Department, Universidad del Valle, AA 25360, Cali, Colombia.
FAU - Caro Rodriguez, Diana
AU  - Caro Rodriguez D
AD  - Institut de Police Scientifique, Ecole des Sciences Criminelles, Universite de 
      Lausanne, 1015 Lausanne, Switzerland.
FAU - Arana, Victoria A
AU  - Arana VA
AD  - Grupo de Investigacion Ciencias, Educacion y Tecnologia-CETIC, Programa de 
      Quimica, Facultad de Ciencias Basicas, Universidad del Atlantico, Km 7 Antigua 
      Via Puerto Colombia, Barranquilla, Atlantico, Colombia.
FAU - Bernal, Andres
AU  - Bernal A
AD  - Chemistry Department, Universidad del Valle, AA 25360, Cali, Colombia.
AD  - Departamento de Ciencias Basicas, Universidad Jorge Tadeo Lozano, Bogota, 
      Colombia.
FAU - Esseiva, Pierre
AU  - Esseiva P
AD  - Institut de Police Scientifique, Ecole des Sciences Criminelles, Universite de 
      Lausanne, 1015 Lausanne, Switzerland.
FAU - Wist, Julien
AU  - Wist J
AUID- ORCID: 0000-0002-3416-2572
AD  - Chemistry Department, Universidad del Valle, AA 25360, Cali, Colombia.
LA  - eng
PT  - Journal Article
DEP - 20171101
PL  - Egypt
TA  - Int J Anal Chem
JT  - International journal of analytical chemistry
JID - 101519424
PMC - PMC5672123
EDAT- 2017/12/05 06:00
MHDA- 2017/12/05 06:01
PMCR- 2017/11/01
CRDT- 2017/12/05 06:00
PHST- 2017/04/03 00:00 [received]
PHST- 2017/08/01 00:00 [revised]
PHST- 2017/08/30 00:00 [accepted]
PHST- 2017/12/05 06:00 [entrez]
PHST- 2017/12/05 06:00 [pubmed]
PHST- 2017/12/05 06:01 [medline]
PHST- 2017/11/01 00:00 [pmc-release]
AID - 10.1155/2017/7210463 [doi]
PST - ppublish
SO  - Int J Anal Chem. 2017;2017:7210463. doi: 10.1155/2017/7210463. Epub 2017 Nov 1.