title: Ion mobility spectrometry versus classical physico-chemical analysis for assessing the shelf life of extra virgin olive oil according to container type and storage conditions.
abstract: An experimental study was conducted to assess the stability of a single-variety (Arbequina) extra virgin olive oil (EVOO) as a function of container type and storage conditions over a period of 11 months. EVOO quality was assessed by using ion mobility spectrometry (IMS), which provides increased simplicity, expeditiousness, and relative economy. The results were compared with the ones obtained by using the official method based on classical physico-chemical analysis. Bag-in-box, metal, dark glass, clear glass, and polyethylene terephthalate containers holding EVOO were opened on a periodic basis for sampling to simulate domestic use; in parallel, other containers were kept closed until analysis to simulate the storage conditions on market shelves. The results of the physico-chemical and instrumental analyses led to similar conclusions. Thus, samples packaged in bag-in-box containers preserved oil quality for 11 months, better than other container types. The HS-GC-IMS results confirm that 2-heptenal and 1-penten-3-one are two accurate markers of EVOO quality.
authors: Department of Analytical Chemistry, Faculty of Science, University of Cordoba, Andalusian Institute of Fine Chemistry and Nanochemistry , International Agrifood Campus of Excellence (ceiA3), Annex C3 Building, Campus of Rabanales, E-14071 Córdoba, Spain.
authors: Rocío
authors: R
authors: Garrido-Delgado
authors: M Mar
authors: MM
authors: Dobao-Prieto
authors: Lourdes
authors: L
authors: Arce
authors: Joaquín
authors: J
authors: Aguilar
authors: José L
authors: JL
authors: Cumplido
authors: Miguel
authors: M
authors: Valcárcel
mesh_terms: D018857:Food Packaging / Q000295:instrumentation; D061353:Food Storage; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D063731:Mobile Applications; D000069463:Olive Oil; D010938:Plant Oils / Q000737:chemistry*; D011786:Quality Control
chemical_list: D000069463:Olive Oil; D010938:Plant Oils
keywords: extra virgin olive oil; headspace; ion mobility spectrometry; packaging; quality control; volatile compounds