Sulfur substances of hop oils - another tool for identification of hop cultivars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F14864347%3A_____%2F21%3AN0000024" target="_blank" >RIV/14864347:_____/21:N0000024 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.actahort.org/books/1328/1328_21.htm" target="_blank" >https://www.actahort.org/books/1328/1328_21.htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17660/ActaHortic.2021.1328.21" target="_blank" >10.17660/ActaHortic.2021.1328.21</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sulfur substances of hop oils - another tool for identification of hop cultivars

Popis výsledku v původním jazyce

Sulfur substances are important components of the hop aroma, even though they account for only approximately 1% of the total oil fraction of hop cones. Thirty sulfur-containing volatiles were detected by chromatographic analysis of hop oils by distillation. Thioesters S-methylthio-hexanoate, S-methyl-thio-isovalerate, S-methyl-thio-butyrate have been identified as the dominant components. Polyfunctional thiols were not detected because their amounts are very low in hops. It was found that the composition of sulfur compounds of hop oils, examined on a set of 14 Czech hop cultivars, can be used to distinguish cultivars. Statistical evaluation using multivariate statistical methods has shown that the spectrum of sulfur substances can be used to determine the cultivar authenticity for only a few cultivars (‘Boomerang’, ‘Kazbek’, ‘Gaia’, ‘Vital’). For other cultivars it is not sufficient to distinguish them reliably. The analysis of sulfur compounds of hop oils must therefore be considered as an auxiliary chemotaxonomic tool.

Název v anglickém jazyce

Sulfur substances of hop oils - another tool for identification of hop cultivars

Popis výsledku anglicky

Sulfur substances are important components of the hop aroma, even though they account for only approximately 1% of the total oil fraction of hop cones. Thirty sulfur-containing volatiles were detected by chromatographic analysis of hop oils by distillation. Thioesters S-methylthio-hexanoate, S-methyl-thio-isovalerate, S-methyl-thio-butyrate have been identified as the dominant components. Polyfunctional thiols were not detected because their amounts are very low in hops. It was found that the composition of sulfur compounds of hop oils, examined on a set of 14 Czech hop cultivars, can be used to distinguish cultivars. Statistical evaluation using multivariate statistical methods has shown that the spectrum of sulfur substances can be used to determine the cultivar authenticity for only a few cultivars (‘Boomerang’, ‘Kazbek’, ‘Gaia’, ‘Vital’). For other cultivars it is not sufficient to distinguish them reliably. The analysis of sulfur compounds of hop oils must therefore be considered as an auxiliary chemotaxonomic tool.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Horticulturae 1328

ISBN

978-94-62613-25-6

ISSN

0567-7572

e-ISSN

2406-6168

Počet stran výsledku

9

Strana od-do

153-161

Název nakladatele

International Society for Horticultural Science

Místo vydání

Leuven

Místo konání akce

Stuttgart

Datum konání akce

8. 3. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—