Determination of short chain fatty acids isomers, the sensory active products of hops aging, in beer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F13%3A%230000810" target="_blank" >RIV/60193697:_____/13:#0000810 - isvavai.cz</a>

Result on the web

<a href="http://kvasnyprumysl.cz/en/journal/2013/4" target="_blank" >http://kvasnyprumysl.cz/en/journal/2013/4</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of short chain fatty acids isomers, the sensory active products of hops aging, in beer

Original language description

Important products of hop aging are the C4 and C5 isomers of short chain fatty acids; namely 2-methyl propionic acid (isobutyric acid), 2-methyl butyric acid and 3-methyl butyric acid (isovaleric acid). These acids are sensory active and moreover, afterthe esterification during beer production they can provide further sensory active compounds contributing to a stale aftertaste. In the framework of this study a sufficiently sensitive and selective method for the determination of these substances in beerwas developed. This method is based on the isolation of the short chain fatty acids and their isomers by means of solid phase extraction (SPE) and followed by quantification using gas chromatography?mass spectrometry (GC-MS). The use of mass spectrometry for the detection eliminated the problem of the difficult chromatographic separation and quantification of these compounds. When compared with the usual detection using a flame ionisation detector (FID) the results of the quantitative d

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

Kvasný průmysl

ISSN

0023-5830

e-ISSN

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Volume of the periodical

59

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

86-90

UT code for WoS article

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EID of the result in the Scopus database

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