The impact of fermentation temperature on yeast reductase activity.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F04%3A00012906" target="_blank" >RIV/60461373:22330/04:00012906 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The impact of fermentation temperature on yeast reductase activity.
Original language description
Brewers' yeast metabolism is responsible for formation of desirable aroma compounds and for elimination of undesirable wort-derived aldehydes in beer. Fermentation trials were conducted at 10 and 15°C to assess yeast aldehyde reductase activity. Substates tested were 3-methylbutanal and methional. For fermentation at 15°C, both aldehyde reductase activities reached a max. on the 2nd day then decreased progressively. For fermentation at 10°C, both aldheyde reductase activities increased to a max. after 4days, then decreased slightly. For the lager yeast strain used, level of specific reductase activity was greater against methional than 3-methylbutanal. Effect of fermentation temp. on aldehyde concn. and flavour stability of beers was also assessed. Fermentation at 10°C gave lower aldehyde concn. than fermentation at 15°C, showing that modifying fermentation temp. can reduce aldehyde concn. in fresh beer. However, this potential extended flavour stability is not observed if the beer is
Czech name
Vliv teploty kvašení na kvasničnou reduktasovou aktivitu
Czech description
Vliv teploty kvašení na kvasničnou reduktasovou aktivitu
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EI - Biotechnology and bionics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Technical Quarterly, Master Brewers' Association of the Americas.
ISSN
0743-9407
e-ISSN
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Volume of the periodical
41
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
282-292
UT code for WoS article
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EID of the result in the Scopus database
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