Analysis of Aroma-active Components in Purple Potato Wine during Fermentation
The aroma-active components of purple potato wine were extracted by solid-phase microextraction （SPME） and identified by gas chromatography-mass spectrometry （GC-MS） and computer retrieval. Moreover, the changes of alcohol degree, anthocyanins, chromatic aberration, pH, soluble solid content were tracked during the whole fermentation of purple potato wine. Fifty-seven aroma-active components were identified from purple potato wine, accounting for 97.13% of the total peak area. The major aroma-active compounds were isobutanol, isoamylol, octylic acid ethyl ester, and phenyl ethanol. Alcohol degree and volatile acid content exhibited a gradually increasing trend, while anthocyanins, soluble solid content and chromatic aberration tended to gradually decrease. Little change in pH was observed during the entire fermentation process.
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维普
