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Fast non-invasive screening to detect fraud in oil capsules
- Source :
- LWT. 109:179-185
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- This work aimed to propose a methodology to be used as a fast screening method to detect adulteration in oil capsules using Near Infrared (NIR) spectroscopy through Principal Components Analysis (PCA). The experiment consisted in measuring the NIR spectra from 25 different intact oil capsules from different oil/mixtures and, to provide a trustworthy comparison, the oil capsule internal content was extracted to be evaluated by High-Resolution Gas Chromatography (HRGC). In order to be useful, the proposed methodology demands for a known certified set of samples to be used as a target. The ability to detect adulteration was verified comparing between NIR and GC PCA scores disposal, in which 6 samples did not match. Therefore, the methodology suggests that these 6 samples would be evaluated by HRGC in place of the whole set of 25 samples. Thus, NIR spectroscopy could be used as a fast screening method to indicate which samples should be analyzed by gas chromatography, considering that each coinciding sample, i.e. disposed of in agreement to the HRGC PCA score, is already certified by HRGC regarding on their content.
- Subjects :
- 0106 biological sciences
Chromatography
Sample (material)
Near-infrared spectroscopy
Non invasive
04 agricultural and veterinary sciences
040401 food science
01 natural sciences
0404 agricultural biotechnology
Trustworthiness
010608 biotechnology
Principal component analysis
Screening method
Environmental science
Nir spectra
Gas chromatography
Food Science
Subjects
Details
- ISSN :
- 00236438
- Volume :
- 109
- Database :
- OpenAIRE
- Journal :
- LWT
- Accession number :
- edsair.doi...........97b57b703945e357fdd6344beb08850d
- Full Text :
- https://doi.org/10.1016/j.lwt.2019.03.088