Abstract
A new method for the quantification of volatile compounds in ciders was developed using stir bar sorptive extraction (SBSE) followed by gas chromatography (GC)-mass spectrometry (MS). The optimized conditions consisted of 10 mL cider sample with NaCl addition to a final concentration of 30% (w/v) extracted by SBSE at 55°C during 60 min, stirring at 1100 rpm. Under the conditions described above, the method linearity was satisfactory, with correlation coefficients (R2) higher than 0.99 in all cases. The detection limits of this method ranged from 0.01 to 6.37 μg/L, and quantification limits ranged from 0.03 to 21.25 μg/L. The recoveries of analyzed compounds varied between 70.92 and 111.38%. The relative standard deviations (RSD) were all below 10%. A total of 54 volatile compounds in six samples from Chinese cider were quantified, mainly esters, alcohols, terpenoids, aromatics, and acids.
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