Abstract
Virgin olive oil samples of Ayvalik and Memecik olive varieties from the Aegean region of Turkey were evaluated for their acidity, peroxide, and color values, and the volatile compounds were investigated by using solid phasemicro extraction/gas chromatography/mass spectroscopy (SPME/GC/MS). The acidity of all the samples were found to be between 0.35–1.0% oleic acid and peroxide values of the oil samples ranged between 14–52 meq/O2 kg of oil. The Y, R, and B values of the samples were between 70–73.60, 1.30–4.70, and 0–3.60, respectively. The SPME/GC/MS results have shown that hexanal (5.66–15.48%), 3 hexen 1 ol (3.12–12.1%), cis 3 hexenol (6.15–13.49%), and 9 octadecenoic acid (5.99-16.01%) were observed as the characteristic volatiles for Ayvalik variety, while trans 2 hexanal (8.65–38.09%) and 3 hexen 1 ol acetate (0.97–7.43%) were observed as the characteristic volatiles for Memecik variety.
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