Volatile components in fruits of raspberry cultivars and selection grown in Western Serbia

This study presents the results of a research into volatile compounds in raspberry fruits of four commercial cultivars (‘Willamette’, ‘Meeker’, ‘Tulameen’, ‘Latham’) and one a selection (‘K 81/6’) grown in Western Serbia. By using the method of simultaneous distillation and extraction (Likens-Nickerson method), 37 volatile compounds were isolated and identified (using gas chromatography-mass spectrometry ‡ GC/MS), and then classified into corresponding classes of aldehydes, ketones, acids, esters, terpenes, C13-norisoprenoids, sesquiterpenes and hydrocarbons. A quantitative analysis (using gas chromatography-flame ionisation detector - GC/FID) revealed that tested raspberry cultivars and selection differ in the content of individual volatile components (expressed in %). The highest share in volatile components belonged to the class of C13-norisoprenoids, among which the most abundant were ß-ionone (ranging from 4.50% in ‘Latham’ to 26.79% in ‘K 81/6’ selection) and α-ionone (ranging from 5.04% in ‘Latham’ to 11.43% in ‘Meeker’).