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@article{1341623,
author = {Michel, Maximilian and Kopecká, Jana and MeierandDörnberg, Tim and Zarnkow, Martin and Jacob, Fritz and Hutzler, Mathias},
article_number = {4},
doi = {http://dx.doi.org/10.1002/yea.3146},
keywords = {non-Saccharomyces; Torulaspora delbrueckii; beer; screening; yeast},
language = {eng},
issn = {0749-503X},
journal = {Yeast},
title = {Screening for new brewing yeasts in the non- Saccharomyces sector with Torulaspora delbrueckii as model},
volume = {33},
year = {2016}
}
TY - JOUR
ID - 1341623
AU - Michel, Maximilian - Kopecká, Jana - Meier-Dörnberg, Tim - Zarnkow, Martin - Jacob, Fritz - Hutzler, Mathias
PY - 2016
TI - Screening for new brewing yeasts in the non- Saccharomyces sector with Torulaspora delbrueckii as model
JF - Yeast
VL - 33
IS - 4
SP - 129-144
EP - 129-144
SN - 0749503X
KW - non-Saccharomyces
KW - Torulaspora delbrueckii
KW - beer
KW - screening
KW - yeast
N2 - 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. Two other strains could possibly be used for pre-fermentation as a bio-flavouring agent for beers that have been postfermented by Saccharomyces strains as a consequence of their low sugar utilization but good flavour-forming properties.
ER -
MICHEL, Maximilian, Jana KOPECKÁ, Tim MEIER-DÖRNBERG, Martin ZARNKOW, Fritz JACOB and Mathias HUTZLER. Screening for new brewing yeasts in the non- Saccharomyces sector with Torulaspora delbrueckii as model. \textit{Yeast}. 2016, vol.~33, No~4, p.~129-144. ISSN~0749-503X. Available from: https://dx.doi.org/10.1002/yea.3146.
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