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A comparison between NIR and ATR-FTIR spectroscopy for varietal differentiation of Spanish intact almonds

Identificadores del recurso

Cortes, V.; Barat, J. M.; Talens, P.; Blasco, J.; Jesus Lerma-Garcia, M. (2018). A comparison between NIR and ATR-FTIR spectroscopy for varietal differentiation of spanish intact almonds. Food Control, 94, 241-248.

http://hdl.handle.net/20.500.11939/6201

10.1016/j.foodcont.2018.07.020

https://www.sciencedirect.com/science/article/pii/S0956713518303578?via%3Dihub

Procedencia

(ReDIVIA: Repositori Digital de l'Institut Valencià d'Investigacions Agràries)

Ficha

Título:: A comparison between NIR and ATR-FTIR spectroscopy for varietal differentiation of Spanish intact almonds
Descripción:: The rapid and easy classification of almond varieties with similar morphology, different quality properties and, in most cases, different prices is interesting to protect both the almond industry and the consumers from fraud. Therefore, in this work, intact almond kernels from four Spanish varieties ('Guara', 'Rumbeta', `Marcona'and `Planeta') were analysed using both near infrared (NIR) and attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy. After spectra measurement, NIR and ATR-FTIR spectral data were pre-treated and employed to construct two classification methods (partial least square-discriminant analysis (PLS-DA) and quadratic discriminant analysis (QDA)) in order to check their ability to classify almonds according to their variety. The best overall accuracies (94.45%) were obtained with the PLS-DA model of ATR-FTIR and the QDA model of NIR data. These results confirm that both spectroscopic techniques, if the optimal statistical model is selected, are powerful tools to reliably discriminate almonds according to their varieties.
Fuente:: electronico
Idioma:
Autor/Productor:: Cortés, Victoria; Barat, Jose Manuel; Talens, Pau; Blasco, José; Lerma-García, María J.
Derechos:: Atribución-NoComercial-SinDerivadas 3.0 España; http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Fecha:: 2019-05-15T10:37:41Z; 2018
Tipo de recurso:: article; acceptedVersion

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3. <dc:creator>Barat, Jose Manuel</dc:creator>
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7. <dc:description>The rapid and easy classification of almond varieties with similar morphology, different quality properties and, in most cases, different prices is interesting to protect both the almond industry and the consumers from fraud. Therefore, in this work, intact almond kernels from four Spanish varieties ('Guara', 'Rumbeta', `Marcona'and `Planeta') were analysed using both near infrared (NIR) and attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy. After spectra measurement, NIR and ATR-FTIR spectral data were pre-treated and employed to construct two classification methods (partial least square-discriminant analysis (PLS-DA) and quadratic discriminant analysis (QDA)) in order to check their ability to classify almonds according to their variety. The best overall accuracies (94.45%) were obtained with the PLS-DA model of ATR-FTIR and the QDA model of NIR data. These results confirm that both spectroscopic techniques, if the optimal statistical model is selected, are powerful tools to reliably discriminate almonds according to their varieties.</dc:description>
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