Chemotyping of new hop (Humulus lupulus L.) genotypes using comprehensive two-dimensional gas chromatography with quadrupole accurate mass time-of-flight mass spectrometry

DanDan Yan, Yong Foo Wong, Laura Tedone, Robert A Shellie, Philip J. Marriott, Simon P. Whittock, Anthony Koutoulis

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

Comprehensive two-dimensional gas chromatography with quadrupole accurate mass time-of-flight mass spectrometry (GC. ×. GC-Q-TOFMS) is employed to profile Humulus lupulus L. (hop) essential oils. Comparison of characterised essential oils allows discrimination among chemotypes. Experimental and commercial hop genotypes displayed distinguishable chemotypic patterns among the volatile secondary metabolites making up their essential oils. In total, 210-306 unique compounds were detected (depending on specific genotype), with 99 of these compounds either positively or tentatively identified. Identified volatile secondary metabolites were grouped into esters, monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes and ketones. Terpenoids were the dominant chemical families across all hop genotypes analysed, representing between 67% and 90% of the total ion count. The multidimensional chromatographic profiles of hop essential oils are extremely information-rich, making GC. ×. GC-Q-TOFMS useful for fast screening of new hybrid hop genotypes, and therefore informing breeding strategies to derive new commercial hop cultivars for the development of distinctive and desirable beers.

Original languageEnglish
Pages (from-to)110–121
Number of pages12
JournalJournal of Chromatography A
Volume1536
DOIs
Publication statusPublished - 2018

Keywords

  • Accurate mass time-of-flight mass spectrometry
  • Comprehensive two-dimensional gas chromatography
  • Hop
  • Hop chemotypes
  • Hop genotypes
  • Humulus lupulus L

Cite this

Yan, DanDan ; Wong, Yong Foo ; Tedone, Laura ; Shellie, Robert A ; Marriott, Philip J. ; Whittock, Simon P. ; Koutoulis, Anthony. / Chemotyping of new hop (Humulus lupulus L.) genotypes using comprehensive two-dimensional gas chromatography with quadrupole accurate mass time-of-flight mass spectrometry. In: Journal of Chromatography A. 2018 ; Vol. 1536. pp. 110–121.
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abstract = "Comprehensive two-dimensional gas chromatography with quadrupole accurate mass time-of-flight mass spectrometry (GC. ×. GC-Q-TOFMS) is employed to profile Humulus lupulus L. (hop) essential oils. Comparison of characterised essential oils allows discrimination among chemotypes. Experimental and commercial hop genotypes displayed distinguishable chemotypic patterns among the volatile secondary metabolites making up their essential oils. In total, 210-306 unique compounds were detected (depending on specific genotype), with 99 of these compounds either positively or tentatively identified. Identified volatile secondary metabolites were grouped into esters, monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes and ketones. Terpenoids were the dominant chemical families across all hop genotypes analysed, representing between 67{\%} and 90{\%} of the total ion count. The multidimensional chromatographic profiles of hop essential oils are extremely information-rich, making GC. ×. GC-Q-TOFMS useful for fast screening of new hybrid hop genotypes, and therefore informing breeding strategies to derive new commercial hop cultivars for the development of distinctive and desirable beers.",
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Chemotyping of new hop (Humulus lupulus L.) genotypes using comprehensive two-dimensional gas chromatography with quadrupole accurate mass time-of-flight mass spectrometry. / Yan, DanDan; Wong, Yong Foo; Tedone, Laura; Shellie, Robert A; Marriott, Philip J.; Whittock, Simon P.; Koutoulis, Anthony.

In: Journal of Chromatography A, Vol. 1536, 2018, p. 110–121.

Research output: Contribution to journalArticleResearchpeer-review

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