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The volatile compounds were identified by GC\u2013MS and the main chemotype was quantified by GC with flame ionisation detection (FID). Phenolic compounds were identified and quantified by HPLC and electrospray ionisation (ESI) with MS\/MS.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The essential oils <jats:italic>Mentha piperita<\/jats:italic> (ct. menthol\/menthone), <jats:italic>Rosmarinus officinalis<\/jats:italic> L. (ct. eucalyptol\/camphor) and <jats:italic>Origanum vulgare<\/jats:italic> (ct. carvacrol\/thymol), whereas <jats:italic>Thymus vulgaris<\/jats:italic> L. was found to be a pure chemotype (ct. thymol). All three extracts also contained six phenolic compounds. The highest extraction yields were achieved by the Soxhlet and ASE techniques, with <jats:italic>M. piperita<\/jats:italic> and <jats:italic>R. officinalis<\/jats:italic> L. producing the highest concentrations of rosmarinic and carnosic acids. Finally, it was observed that <jats:italic>M. piperita<\/jats:italic> and <jats:italic>O. vulgare<\/jats:italic> produced the highest total phenolic content, whereas <jats:italic>R. officinalis<\/jats:italic> L. and <jats:italic>T. vulgaris<\/jats:italic> L. produced the highest anti\u2010oxidant activity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The ASE and Soxhlet extraction techniques presented the highest yields of volatile and phenolic compounds, showing their suitability to characterise the chemical profile of aromatic plants. Copyright \u00a9 2014 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pca.2537","type":"journal-article","created":{"date-parts":[[2014,9,4]],"date-time":"2014-09-04T20:51:30Z","timestamp":1409863890000},"page":"61-71","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":58,"title":["Comparison of Soxhlet, Accelerated Solvent and Supercritical Fluid Extraction Techniques for Volatile (GC\u2013MS and GC\/FID) and Phenolic Compounds (HPLC\u2013ESI\/MS\/MS) from <i>Lamiaceae<\/i> Species"],"prefix":"10.1002","volume":"26","author":[{"given":"Raquel","family":"Rodr\u00edguez\u2010Solana","sequence":"first","affiliation":[{"name":"Department of Chemical Engineering, Sciences Faculty University of Vigo (Campus Ourense)  As Lagoas s\/n 32004 Ourense Spain"},{"name":"Laboratory of Agro\u2010food Biotechnology, CITI\u2010Tecn\u00f3pole Parque Tecnol\u00f3gico de Galicia  San Cibrao das Vi\u00f1as Ourense 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