Comparison of liquid–liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species

• Published in: Journal of Chromatography A Vol. 1193; no. 1; pp. 37 - 49
• Main Authors: Paolini, Julien, Leandri, Christelle, Desjobert, Jean-Marie, Barboni, Toussaint, Costa, Jean
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 06.06.2008; Amsterdam; New York: Elsevier; Elsevier
• Subjects: Analytical chemistry; Applied sciences; Chemical industry and chemicals; Chemical Sciences; Chemistry; Chromatographic methods and physical methods associated with chromatography; Chromatography, Gas - methods; essential oil crops; essential oils; Essential oils, perfumes; Exact sciences and technology; extraction; Gas chromatographic methods; gas chromatography; Gas Chromatography-Mass Spectrometry - methods; GC/MS; HS-SPME; Hydrolats; liquid liquid extraction; mass spectrometry; Mediterranean Region; microextraction; Multivariate Analysis; Oils, Volatile - chemistry; Organic chemistry; P&T-ATD; plant extracts; solid phase extraction; solid phase microextraction; Volatile compounds; Volatilization; Washing products. Cosmetics and toiletries. Perfumes; France; Corsica; Europe; Mediterranean Region; Volatile compounds; HS-SPME; GC; P&T-ATD; GC/MS; Hydrolats; Chemical analysis; Essential oil plant; Steam distillation; Flame ionization detector; Solvent extraction; Chemical enrichment; Sample preparation; Chemical composition; Essential oil; Liquid liquid extraction; Coupled method; Thermodesorption; Solid phase microextraction; Gas chromatography; Headspace; Mass spectrometry; Chemometrics; Comparative study; Principal component analysis; volatile compounds; Hydolats
• ISSN: 0021-9673; 1873-3778
• DOI: 10.1016/j.chroma.2008.04.021

Chemical composition of volatile fractions of nine commercial hydrolats and corresponding essential oils obtained using an industrial process were studied. The hydrolat volatile fractions were reported for the first time. A comparative study of those obtained, on the one hand, by liquid–liquid extraction (LLE) and, on the other hand, using five solid-phase microextraction (SPME) fibers and also purge-and-trap-automatic thermal desorption (P&T-ATD) was conducted with analysis performed by GC and GC/MS. The use of various techniques has resulted in a change of chromatographic profile of the hydrolat volatile fractions. Quantitative differences were established between chemical compositions of headspace and those obtained by a conventional method (LLE). Statistical analyses were carried out to summarize the results.