A Simple and Effective Mass Spectrometric Approach to Identify the Adulteration of the Mediterranean Diet Component Extra-Virgin Olive Oil with Corn Oil

International Journal of Molecular Sciences
Francesco Di GirolamoLorenza Putignani

Abstract

Extra virgin olive oil (EVOO) with its nutraceutical characteristics substantially contributes as a major nutrient to the health benefit of the Mediterranean diet. Unfortunately, the adulteration of EVOO with less expensive oils (e.g., peanut and corn oils), has become one of the biggest source of agricultural fraud in the European Union, with important health implications for consumers, mainly due to the introduction of seed oil-derived allergens causing, especially in children, severe food allergy phenomena. In this regard, revealing adulterations of EVOO is of fundamental importance for health care and prevention reasons, especially in children. To this aim, effective analytical methods to assess EVOO purity are necessary. Here, we propose a simple, rapid, robust and very sensitive method for non-specialized mass spectrometric laboratory, based on the matrix-assisted laser desorption/ionization mass spectrometry (MALDI-TOF MS) coupled to unsupervised hierarchical clustering (UHC), principal component (PCA) and Pearson's correlation analyses, to reveal corn oil (CO) adulterations in EVOO at very low levels (down to 0.5%).

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Citations

Feb 26, 2020·Foods·Didem Peren AykasLuis Rodriguez-Saona
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Tong SunChanghu Xue
Aug 5, 2021·Critical Reviews in Food Science and Nutrition·Anjali SudhakarCinu Varghese

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Methods Mentioned

BETA
PCA

Software Mentioned

[UNK]
Biotyper
pvclust
FlexAnalysis
FlexControl
R Bioconductor
ClinProTools

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