Screening for new brewing yeasts in the non- Saccharomyces sector with Torulaspora delbrueckii as model

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00089642" target="_blank" >RIV/00216224:14310/16:00089642 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/yea.3146" target="_blank" >http://dx.doi.org/10.1002/yea.3146</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/yea.3146" target="_blank" >10.1002/yea.3146</a>

Result language
angličtina
Original language name
Screening for new brewing yeasts in the non- Saccharomyces sector with Torulaspora delbrueckii as model
Original language description
This study describes a screening system for future brewing yeasts focusing on non- Saccharomyces yeasts. The aim was to find new yeast strains that can ferment beer wort into a respectable beer. Ten Torulaspora delbrueckii strains were put through the screening system, which included sugar utilization tests, hop resistance tests, ethanol resistance tests, polymerase chain reaction fingerprinting, propagation tests, amino acid catabolism and anabolism, phenolic off-flavour tests and trial fermentations. Trial fermentations were analysed for extract reduction, pH drop, yeast concentration in bulk fluid and fermentation by-products. All investigated strains were able to partly ferment wort sugars and showed high tolerance to hop compounds and ethanol. One of the investigated yeast strains fermented all the wort sugars and produced a respectable fruity flavour and a beer of average ethanol content with a high volatile flavour compound concentration.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EE - Microbiology, virology
OECD FORD branch
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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