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Fragaria cascadensis K.E. Hummer: first investigation of volatile organic compounds of fruit

GND
1058930036
Zugehörigkeit
Julius Kühn-Institut (JKI), Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Quedlinburg
Ulrich, Detlef;
Zugehörigkeit
Hansabred GmbH Co. KG, Dresden, Germany; Humboldt-Universitat zu Berlin, Albrecht Daniel Thaer-lnstitute, Berlin, Germany
Olbricht, Klaus;
GND
1176035908
Zugehörigkeit
Julius Kühn Institute (]Kl), Federal Research Centre for Cultivated Plants, Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, Quedlinburg, Germany
Weiß, Kirsten;
Zugehörigkeit
USDA ARS National Clonal Germplasm Repository, Corvallis, Oregon, USA
Hummer, K. E.

In 2012, Fragaria cascadensis was described as a decaploid strawberry species from the Oregon Cascade Mountains. The objective of this study was to examine the aroma patterns of fruits of this F. cascadensis in contrast to those of F. vesca ssp. bracteata (A. Heller) Staudt and F. virginiana ssp. platypetala (Rydberg) Staudt. These profiles were investigated by immersion stir bar sorptive extraction-gas chromatography-quadrupol mass spectrometry (Imm-SBSE-GC-qMS). The profile of F. cascadensis fruits is clearly separated from that of either F. vesca ssp. bracteata or F. virginiana ssp. platypetala considering 53 detected volatile organic compounds (VOC). Several compounds from different groups were identified: esters, ketones, terpenoids, lactones, furanones, aldehydes, alcohols, acids, and carotenoid derived compounds. Compounds, such as 2-undecanone, phenylmethyl acetate, and 13-damascenone, were found in F. vesca ssp. bracteata, but not in F. virginiana ssp. platypetala or F. cascadensis. In contrast, the compound verbenone was detected only in F. cascadensis, though it did not appear in either the diploid F. vesca ssp. bracteata or in the octoploid F. virginiana ssp. platypetala. Linalool, an important aroma compound, is detectable with low amounts in fruit of F. vesca ssp. bracteata and F. virginiana ssp. platypetala, but with six- to ten-fold times those values in F. cascadensis. A distinctive feature of F. cascadensis is the occurrence of high concentrations of acetophenone.

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