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Acetaldehyde effect in yeast (Paperback)
Loot Price: R2,119
Discovery Miles 21 190
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Acetaldehyde effect in yeast (Paperback)
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Total price: R2,139
Discovery Miles: 21 390
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Small quantities of added acetaldehyde have been reported to
stimulate strongly the growth of Saccharomyces cerevisiae cultures
subjected to ethanol stress, with a similar, smaller effect also
reported for temperature-shifted cultures, raising the possibility
that acetaldehyde addition may be generally beneficial in combating
stresses in yeast. This book tests the generality of the
acetaldehyde effect in S. cerevisiae by examining it over a wide
range of chemical and environmental stress conditions. Two
potential practical applications of the effect are then examined in
depth: the value of acetaldehyde as a detoxificant in
lignocellulose-to-ethanol fermentations, and its ability, when fed
in regular doses, to reduce the fermentation time and prevent
sticking in high gravity industrial ethanol fermentations. Finally,
investigations are presented in support of the hypothesis of
Stanley et al. (1997) that the effect is the result of
acetaldehyde-induced modifications to the intracellular redox
balance.
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