Comparison of Static Headspace, Headspace Solid Phase Microextraction, Headspace Sorptive Extraction, and Direct Thermal Desorption Techniques on Chemical Composition of French Olive Oils

Static headspace (SHS), headspace solid phase microextraction (HS-SPME), headspace sorptive extraction (HSSE), and direct thermal desorption (DTD) were applied to the analysis of four French virgin olive oils from Corsica. More than 60 compounds were isolated and characterized by GC-RI and GC-MS. SH...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2003-12, Vol.51 (26), p.7709-7716
Main Authors: Cavalli, Jean-François, Fernandez, Xavier, Lizzani-Cuvelier, Louisette, Loiseau, André-Michel
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chromatography, Gas - methods
Fat industries
Food industries
France
Fundamental and applied biological sciences. Psychology
Gas Chromatography-Mass Spectrometry - methods
Hot Temperature
Mass Spectrometry - methods
Olive Oil
Plant Oils - chemistry
Sensitivity and Specificity
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Summary:Static headspace (SHS), headspace solid phase microextraction (HS-SPME), headspace sorptive extraction (HSSE), and direct thermal desorption (DTD) were applied to the analysis of four French virgin olive oils from Corsica. More than 60 compounds were isolated and characterized by GC-RI and GC-MS. SHS was not suited to the characterization of olive oil volatile compounds because of low sensitivity. The SPME and HSSE techniques were successfully applied to olive oil headspace analysis. Both methods allow the characterization of volatile compounds (mainly C6 aldehydes and alcohols), which contribute significantly to the “green” flavor note of virgin olive oils. The PDMS stir bar showed a higher concentration capacity than a DVB/CAR/PDMS SPME fiber due to the higher volume of polymeric coating. DTD was a very good tool for extracting volatile and especially semivolatile compounds, such as sesquiterpenes, but requires a significant investment like that for HSSE. Finally, SPME may be a more appropriate technique for routine quality control due to its operational simplicity, repeatability, and low cost. Keywords: Static headspace (SHS); headspace solid phase microextraction (HS-SPME); headspace sorptive extraction (HSSE); direct thermal desorption (DTD); virgin olive oil
ISSN:0021-8561
1520-5118
DOI:10.1021/jf034834n