Induction of acetic acid tolerance and trehalose accumulation by added and produced ethanol in Saccharomyces cerevisiae |
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Authors: | N Arneborg MK Moos M Jakobsen |
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Institution: | (1) Department of Dairy and Food Science, The Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark |
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Abstract: | Both added (49.6 g/l) and produced ethanol (46.2 g/l) caused an increase in the acetic acid tolerance of Saccharomyces cerevisiaegrown in an anaerobic chemostat; added ethanol, however, to a less extent than produced ethanol. The ethanol induced acetic acid tolerance of the cells was linked with an accumulation of trehalose within the cells. These results indicate that trehalose plays a role in the ethanol induced acetic acid tolerance of S. cerevisiae. |
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