Aroma analysis and data handling in the evaluation of niche apple juices from 160 local danish apple cultivars

Old Danish apple cultivars might have potential in the production of speciality apple juices with unique flavor qualities. In the present study, aroma analysis was performed on juices from 160 local apple cultivars. Chromatographic data treatment challenges in the analysis of this large number of samples with very different volatile profiles were overcome with PARAFAC2 and PCA. The main compound groups identified were acetate esters, butanoate esters, and alcohols, and there were large differences in the aroma profiles of the juices of the different apple cultivars.