Qualitative Determination of Beta-Acids and their Transformation Products in Beer and Hop Using HR/AM-LC-MS/MS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F14864347%3A_____%2F14%3A%230000575" target="_blank" >RIV/14864347:_____/14:#0000575 - isvavai.cz</a>
Result on the web
<a href="http://pubs.acs.org/journal/jafcau" target="_blank" >http://pubs.acs.org/journal/jafcau</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jf501852r" target="_blank" >10.1021/jf501852r</a>

Result language
angličtina
Original language name
Qualitative Determination of Beta-Acids and their Transformation Products in Beer and Hop Using HR/AM-LC-MS/MS
Original language description
Transformation products of beta-acids formed during their oxidation, mainly hulupones, have been shown to have an interesting kind of bitterness.Their structuree were elucidated using LC-TOFMS and 1D/2D NMR in solution after thermal treatment of the hopbeta-acids. This study demonstrates thw advantages of MS detection with high resolution and accurace mass measurements.The structure of transformation products in an experimental solution of oxidized beta-acids was elucidated using a newly developed method by hybrid quadrupole-Orbitrap MS. In adition to already known structures, two new ones were identified and named epoxycohulupone and epoxyhulupone.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
—

Project
<a href="/en/project/QI91B227" target="_blank" >QI91B227: Significance of hop beta acids for Czech beers</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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