Attenuated Total Reflectance-Fourier transform infrared spectroscopy coupled with chemometrics for the rapid detection of coconut water adulteration
Attenuated Total Reflectance-Fourier transform infrared spectroscopy coupled with chemometrics for the rapid detection of coconut water adulteration
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- dc.contributor.author
- Teklemariam, Thomas A.
- Moisey, John
- Gotera, Jason
- dc.date.accessioned
- 2023-05-19T13:05:49Z
- dc.date.available
- 2023-05-19T13:05:49Z
- dc.date.issued
- 2021
- dc.description.abstract - en
- Attenuated Total Reflectance-Fourier Transform Infrared spectroscopy (ATR-FTIR), in combination with chemometrics, was explored as a rapid method of detecting sugar adulteration in coconut water. In a simulated experiment, coconut water was substituted with binary sugars, mixed sugars, and high fructose corn syrup and discriminated using the fingerprint infrared band region between 1200-950 cm-1. Principal component analysis (PCA) performed on data pre-processed by the Savitzky-Golay smoothing and gap-segment derivative, revealed data clusters discernible by the type and level of substituted sugars, enabling visual diagnosis of the similarity and anomalous features in the dataset. Statistical performance metrics following a cross-validated partial least square (PLS) regression indicated the prediction of adulterant sugars at single-digit percent substitutions. A parallel exploratory analysis of 31 different commercial coconut water samples showed a distinct PCA clustering for samples bearing the label "added sugar", suggesting the potential use of the methods to screening samples for undeclared sugar additions.
- dc.identifier.citation
- Teklemariam, T. A., Moisey, J., & Gotera, J. [Article in press]. Attenuated Total Reflectance-Fourier transform infrared spectroscopy coupled with chemometrics for the rapid detection of coconut water adulteration. Food Chemistry.
- dc.identifier.doi
- https://doi.org/10.1016/j.foodchem.2021.129616
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/288
- dc.language.iso
- en
- dc.rights - en
- None
- dc.rights - fr
- Aucune
- dc.rights.uri - en
- No License
- dc.rights.uri - fr
- Aucune Licence
- dc.subject - en
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- Attenuated Total Reflectance-Fourier transform infrared spectroscopy coupled with chemometrics for the rapid detection of coconut water adulteration
- dc.type - en
- Accepted manuscript
- dc.type - fr
- Manuscrit accepté
- local.pagination
- 28 pages
- local.requestdoi - en
- No
- local.requestdoi - fr
- No
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