Direct olive oil authentication: Detection of adulteration of olive oil with hazelnut oil by direct coupling of headspace and mass spectrometry, and multivariate regression techniques

2005 ◽  
Vol 1074 (1-2) ◽  
pp. 215-221 ◽  
Author(s):  
Fernando Peña ◽  
Soledad Cárdenas ◽  
Mercedes Gallego ◽  
Miguel Valcárcel
Keyword(s):  
Mass Spectrometry ◽  
Olive Oil ◽  
Multivariate Regression ◽  
Direct Coupling ◽  
Hazelnut Oil ◽  
Regression Techniques ◽  
Olive Oil Authentication

Simple and rapid instrumental characterization of sensory attributes of virgin olive oil based on the direct coupling headspace-mass spectrometry

2008 ◽  
Vol 1188 (2) ◽  
pp. 308-313 ◽  
Author(s):  
Silvia López-Feria ◽  
Soledad Cárdenas ◽  
José Antonio García-Mesa ◽  
Miguel Valcárcel
Keyword(s):  
Mass Spectrometry ◽  
Olive Oil ◽  
Virgin Olive Oil ◽  
Sensory Attributes ◽  
Direct Coupling

Usefulness of the direct coupling headspace–mass spectrometry for sensory quality characterization of virgin olive oil samples

2007 ◽  
Vol 583 (2) ◽  
pp. 411-417 ◽  
Author(s):  
Silvia López-Feria ◽  
Soledad Cárdenas ◽  
José Antonio García-Mesa ◽  
Miguel Valcárcel
Keyword(s):  
Mass Spectrometry ◽  
Olive Oil ◽  
Sensory Quality ◽  
Virgin Olive Oil ◽  
Direct Coupling

scholarly journals Validation of a Method Based on Triglycerides for the Detection of Low Percentages of Hazelnut Oil in Olive Oil by Column Liquid Chromatography

2007 ◽  
Vol 90 (5) ◽  
pp. 1346-1353 ◽  
Author(s):  
Diego L García-González ◽  
María Viera-Macías ◽  
Ramón Aparicio-Ruiz ◽  
Maria T Morales ◽  
Ramón Aparicio
Keyword(s):  
Liquid Chromatography ◽  
Olive Oil ◽  
Carbon Number ◽  
Hazelnut Oil ◽  
Equivalent Carbon Number ◽  
Experimental Conditions ◽  
Mathematical Algorithm ◽  
Relative Standard ◽  
Triglyceride Content ◽  
The Difference

Abstract The difference between theoretical and empirical triglyceride content is a powerful tool to detect the presence of any vegetable oil in olive oil. The current drawback of the method is the separation between equivalent carbon number ECN42 compounds, which affects the reliability of the method and, hence, its cutoff limit. The determination of the triglyceride profile by liquid chromatography using propionitrile as the mobile phase has recently been proposed to improve their quantification, together with a mathematical algorithm whose binary response determines the presence or absence of hazelnut oil. Twenty-one laboratories from 9 countries participated in an interlaboratory study to evaluate the performance characteristics of the whole analytical method. Participants analyzed 12 samples in duplicate, split into 3 intercomparison studies. Statistically significant differences due to the experimental conditions were found in some laboratories, which were detected as outliers by use of Cochran's and Grubbs' tests. The relative standard deviations (RSD) for repeatability and reproducibility were determined following the AOAC Guidelines for Collaborative Studies. The analytical properties of the method were determined by means of the sensitivity (0.86), selectivity (0.94), and reliability (72) for a cutoff limit of 8 (probability 94).

Application of real-time PCR on the development of molecular markers and to evaluate critical aspects for olive oil authentication

2010 ◽  
Vol 118 (2) ◽  
pp. 482-487 ◽  
Author(s):  
Maria J. Giménez ◽  
Fernando Pistón ◽  
Antonio Martín ◽  
Sergio G. Atienza
Keyword(s):  
Molecular Markers ◽  
Olive Oil ◽  
Real Time ◽  
Real Time Pcr ◽  
Olive Oil Authentication ◽  
Critical Aspects
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