engleski

Bioorganic diversity of rare Coriandrum sativum L. Honey: unusual Chromatographic profiles containing derivatives of Linalool/Oxygenated Methoxybenzene

The compounds responsible for highly individual aroma profile of Coriandrum sativum L. honey were isolated by headspace solid-phase microextraction (HS-SPME ; used fibers: A: polydimethylsiloxane (PDMS)/divinylbenzene (DVB) and B: divinylbenzene/carboxen/polydimethylsiloxane), as well as ultrasonic solvent extraction (USE ; used solvents: A: pentane/Et2O 1:2 (v/v) and B: CH2Cl2) and analyzed by gas chromatography (GC) and mass spectrometry (MS). Unusual chromatographic profiles were obtained containing derivatives of linalool/oxygenated methoxybenzene. trans-Linalool oxide (11.1% ; 14.6%) dominated in the headspace, followed by other linalool derivatives (such as cis/trans-anhydrolinalool oxide (5.0% ; 5.9%), isomers of lilac aldehyde/alcohol (14.9% ; 13.8%) or p-menth-1-en-9-al (15.6% ; 18.5%)), octanal, and several low-molecular-weight esters. The major compounds in the solvent extracts were oxygenated methoxybenzene derivatives such as 3, 4, 5-trimethoxybenzyl alcohol (26.3% ; 24.7%), methyl syringate (23.8% ; 11.7%), and 3, 4-dimethoxybenzyl alcohol (5.6% ; 13.9%). Another group of abundant compounds in the extracts were derivatives of linalool (e.g., (E)/(Z)-2, 6-dimethylocta-2, 7-diene-1, 6-diol (17.8% ; 16.1%)). Among the compounds identified, cis/trans-anhydrolinalool oxides and 3, 4, 5-trimethoxybenzyl alcohol can be useful as chemical markers of coriander honey.

Coriandrum sativum ; cis ; trans-Anhydrolinalool oxide ; Benzyl alcohol ; 3 ; 4 ; 5-trimethoxy- ; Syringate ; methyl ; Coriander honey

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