Rapid detection of argan oil adulteration by frying oils using laser induced fluorescence spectroscopy combined with chemometrics tools

S.  Farres; L.  Srata; M. Chikri; S. Addou; F. Fethi

doi:10.3989/gya.0565221

Autores/as

S. Farres Laboratory of Physics of Matter and Radiations (LPMR), Physics Department, Faculty of Sciences, Mohammed First University Oujda https://orcid.org/0000-0001-5978-5701
L. Srata Laboratory of Physics of Matter and Radiations (LPMR), Physics Department, Faculty of Sciences, Mohammed First University Oujda https://orcid.org/0000-0002-9065-1442
M. Chikri Laboratory of Physics of Matter and Radiations (LPMR), Physics Department, Faculty of Sciences, Mohammed First University Oujda https://orcid.org/0000-0002-0762-5527
S. Addou Laboratory of Physics of Matter and Radiations (LPMR), Physics Department, Faculty of Sciences, Mohammed First University Oujda https://orcid.org/0000-0002-5316-5752
F. Fethi Laboratory of Physics of Matter and Radiations (LPMR), Physics Department, Faculty of Sciences, Mohammed First University Oujda https://orcid.org/0000-0002-7054-7111

DOI:

https://doi.org/10.3989/gya.0565221

Palabras clave:

Aceite de argán, Adulteración, Quimiometría, LIF

Resumen

Existe una necesidad de metodologías sólidas y rápidas para determinar la autenticidad de los alimentos. El objetivo de este estudio es detectar y cuantificar la adulteración del aceite de argán mediante espectroscopia de fluorescencia inducida por láser (LIF) junto con métodos quimiométricos. Se utilizaron el análisis de componentes principales (PCA) y la regresión de mínimos cuadrados parciales (PLSR) para evaluar la autenticidad del aceite de argán. Se utilizó PCA para clasificar las muestras según su calidad y el modelo PLS se aprovechó para determinar la cantidad de adulterantes en el aceite de argán puro. El coeficiente de correlación del modelo obtenido fue de alrededor de 0,99, el error cuadrático medio de la predicción (RMSEP) y el error estándar de predicción (SEP) del 2%. Este estudio demostró la viabilidad de la espectroscopia LIF combinada con herramientas quimiométricas que permiten identificar adulterantes en aceite de argán puro, sin necesidad de destruir muestras, a partir de un porcentaje de adulteración del 0,35 %.

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Citas

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