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55 2016

Journal of Food and Nutrition Research
Súhrny čísla 1 / 2016

Butorová, L. – Vítová, E. – Polovka, M.
Comparison of volatiles identified in Aronia melanocarpa and Amelanchier alnifolia using solid-phase microextraction coupled to gas chromatography-mass spectrometry
Journal of Food and Nutrition Research, 55, 2016, č. 1, s. 57-68

Lenka Butorová, Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, 612 00 Brno, Czech Republic. Tel. 00421 2 50237 093, fax 00421 2 55 571 417, e-mail: xcbutorova@fch.vutbr.cz

Received 8 October 2015; 1st revised 8 December 2015; accepted 15 December 2015; published online 5 February 2016.

Súhrn: The volatile constituents of two chokeberry (Aronia melanocarpa) and five saskatoon berry (Amelanchier alnifolia) cultivars were evaluated by solid-phase microextraction (SPME) coupled to gas chromatography with flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) during three seasons (2011–2013). Altogether, 39 and 31 volatile compounds were identified in chokeberries and saskatoon berries, respectively. Similarities were found between chokeberry and saskatoon berry composition of volatiles, in both of them, alcohols and aldehydes were the most abundant, esters, ketones, acids and terpenoids created the minor part. From all the identified volatiles, fourteen compounds were recognized as being responsible for overall aroma of the berries under study (with odour activity values ≥ 1) with their typical fruity, sweet, grassy and/or floral aroma. Based on the results of principal component analysis, 24 compounds were selected and compared using analysis of variance to investigate differences among samples. Statistical analysis confirmed that there were significant differences among varieties and the year of production, but also some similarities were found. These differences/similarities were probably influenced by climatic conditions, habitat and/or degree of maturity/ripening.

Kľúčové slová: Aronia melanocarpa; Amelanchier alnifolia; volatiles; solid-phase microextraction; gas chromatography-mass spectrometry

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