Mut (Mersin) Bölgesinde Hasat Edilen Natürel Sızma Zeytinyağlarının Senkron Floresans Spektroskopisi ve Kemometri ile Orijinalliğinin Doğrulanması: LDA ve HCA Model Yaklaşımları

Abstract

In this work, synchronous fluorescence (SyF) spectroscopy data of extra virgin olive oils (VOOs) harvested from two different harvest terms (2019 and 2020 October) in Mut (Mersin) region and other edible oils were analyzed by linear discriminant analysis (LDA) and hierarchical cluster analysis (HCA) to verify their authenticity. The emission and excitation monochromators were synchronously employed and the data were obtained in the emission wavelength region of 200–800 nm. A robust LDA model was gained to authenticate the extra VOOs and other edible oils: 98.28% of the tested samples were correctly predicted, and HCA dendograms showed successful discriminations with high sensitivity and specificity. The findings show the capability of SyF spectroscopy coupled with chemometrics and offer a promising methodology for confirming the possible adulteration of extra VOOs with inexpensive edible oils. Furthermore, this simple and rapid methodology doesn’t need any chemical usage and laborious procedures through the analysis.