| Title: | Determination of volatile compounds by GC-IMS to assign the quality of virgin olive oil |
| Author(s): | Garrido-Delgado R; Dobao-Prieto Mdel M; Arce L; Valcarcel M; |
| Address: | "Department of Analytical Chemistry, Faculty of Sciences, University of Cordoba, Andalusian Institute of Fine Chemistry and Nanochemistry, International Agrifood Campus of Excellence (ceiA3), Annex C3 Building, Campus of Rabanales, E-14071 Cordoba, Spain. Department of Analytical Chemistry, Faculty of Sciences, University of Cordoba, Andalusian Institute of Fine Chemistry and Nanochemistry, International Agrifood Campus of Excellence (ceiA3), Annex C3 Building, Campus of Rabanales, E-14071 Cordoba, Spain. Electronic address: qa1meobj@uco.es" |
| DOI: | 10.1016/j.foodchem.2015.04.082 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "The characterisation of different olive oil categories (extra virgin, virgin and lampante) using Ion Mobility Spectrometry (IMS) was improved by replacing the multicapillary column (MCC) with a capillary column (CC). The data obtained with MCC-IMS and CC-IMS were evaluated, studying both the global and the specific information obtained after the analysis of the volatile fraction of olive oils. A better differentiation of the oil categories was obtained employing CC vs MCC, since the classification percentage obtained with the CC-IMS was 92% as opposed to 87% obtained with MCC-IMS; although in productivity analytical terms, MCC offer a faster analysis than GC. The specific information obtained was also used to build a database, with a view to facilitating the characterization of specific attributes of olive oils. A total of 26 volatile metabolites (aldehydes, ketones, alcohols and esters) were identified. Finally, as revealed by an ANOVA test, some volatiles differed markedly in content among the different categories of oil. The data obtained confirms the potential of IMS as a reliable analytical screening technique, which can be used to assign the correct category to an olive oil sample" |
| Keywords: | Gas Chromatography-Mass Spectrometry/*methods Olive Oil/*chemistry/classification Quality Control Volatile Organic Compounds/*chemistry Gas chromatography Ion mobility spectrometry Metabolomic Olive oil Volatile compounds; |
| Notes: | "MedlineGarrido-Delgado, Rocio Dobao-Prieto, Maria del Mar Arce, Lourdes Valcarcel, Miguel eng Evaluation Study Research Support, Non-U.S. Gov't England 2015/05/16 Food Chem. 2015 Nov 15; 187:572-9. doi: 10.1016/j.foodchem.2015.04.082. Epub 2015 Apr 24" |
