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Assessment of the phytochemical profiles of novel hop (Humulus lupulus L.) cultivars: a potential route to beer crafting

Citation

Yan, D and Wong, YF and Shellie, RA and Marriott, PJ and Whittock, SP and Koutoulis, A, Assessment of the phytochemical profiles of novel hop (Humulus lupulus L.) cultivars: a potential route to beer crafting, Food Chemistry, 275 pp. 15-23. ISSN 0308-8146 (2019) [Refereed Article]

Copyright Statement

© 2018 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.foodchem.2018.09.082

Abstract

This study investigated the volatile phytochemical diversity of 30 samples obtained from experimental hybrid and commercial H. lupulus L. plants. Essential oils distilled from these samples were analysed by high resolution gas chromatography coupled with accurate mass time-of-flight mass spectrometry (GC–accTOFMS). A total of 58 secondary metabolites, mainly comprising 18 esters, 6 monoterpene hydrocarbons, 2 oxygenated monoterpenes, 20 sesquiterpene hydrocarbons, 7 oxygenated sesquiterpenes, and 4 ketones, were positively or tentatively identified. A total of 24 metabolites were detected in all samples, but commercial cultivars (selected for brewing performance) had fewer compounds identified compared to experimental genotypes. Chemometrics analyses enabled distinct differentiation of experimental hybrids from commercial cultivars, discussed in terms of the different classes of compounds present in different genotypes. Differences among the mono- and sesquiterpenoids, appear to be related to either: i) the genetic origin of the plants; or ii) the processes of bioaccumulation of the identified secondary metabolites.

Item Details

Item Type:Refereed Article
Keywords:Humulus lupulus L., volatile phytochemical profile, hop genotypes, beer, GC–accTOFMS
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Analytical Spectrometry
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Hops
UTAS Author:Yan, D (Ms Dandan Yan)
UTAS Author:Shellie, RA (Associate Professor Robert Shellie)
UTAS Author:Whittock, SP (Mr Simon Whittock)
UTAS Author:Koutoulis, A (Professor Anthony Koutoulis)
ID Code:129276
Year Published:2019
Funding Support:Australian Research Council (LP140100160)
Web of Science® Times Cited:4
Deposited By:Plant Science
Deposited On:2018-11-20
Last Modified:2019-10-17
Downloads:0

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