Identification of volatile aroma compounds of strawberry wine using solid-phase microextraction techniques coupled with gas chromatography–mass spectrometry

Aroma compounds of strawberry wine were trapped by both headspace (HS) and immersion (IM) solid-phase microextraction (SPME). In the strawberry wine, esters were found to be the major compounds detected by both techniques. When using the HS-SPME technique, eight ester compounds (ethyl hexanoate, ethyl octanoate, octyl acetate, methyl decanoate, ethyl-9-decanoate, ethyl decanoate, ethyl cinnamate and ethyl dodecanoate), and (E)-nerolidol could be identified. Seven esters (amyl acetate, ethyl hexanoate, hexyl acetate, ethyl octanoate, ethyl-9-decenoate, ethyl decanoate and ethyl cinnamate) together with (E)-nerolidol, isoamyl alcohol, octanoic acid and decanoic acid were detected by IM-SPME.