engleski

HEADSPACE SOLID-PHASE MICROEXTRACTION OF RARE CORIANDRUM SATIVUM L. HONEY

The chemical analysis of rare Coriandrum sativum L. honey sample from Poland reveals new data on low-molecular compounds that could be helpful for the honey botanical origin specification. The compounds responsible for highly individual aroma profile of Coriandrum sativum L. honey were isolated by headspace solid-phase microextraction (HS-SPME) and analyzed by gas chromatography and mass spectrometry (GC-MS). In order to obtain more complete headspace composition, HS-SPME was applied with two different fibres recommended for volatiles/semi-volatiles: polydimethylsiloxane/divinylbenzene (PDMS/DVB) and divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS). Coriander honey exhibited unusual chromatographic profile of linalool derivatives in the headspace and possesses highly individual aroma that is very well distinguished from other honey types. The headspace of the honey was dominated by trans-linalool oxide (up to 15%) followed by other linalool derivatives such as lilac aldehyde/alcohol isomers (total up to 15%), cis/trans-anhydrolinalool oxides (total up to 6%), cis-linalool oxide (up to 3.5%) as well as linalool (up to 6.5%) and other compounds, structurally related to linalool (such as diastereomers of p-menth-l-en-9-al (total up to 19.0%). Among the compounds identified, cis/trans-dehydroxylinalool oxides can be useful as more specific chemical markers of coriander honey headspace.

Coriandrum sativum L. honey, botanical origin, chemical markers, headspace solid-phase microextraction, gas chromatography-mass spectrometry

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