title: Concurrent Production and Consumption of Ethanol by Cultures of Pachysolen tannophilus Growing on d-Xylose.
abstract: Growing cultures of Pachysolen tannophilus concurrently consumed and produced ethanol in the presence of substantial concentrations of d-xylose. Ethanol was also assimilated in the presence of other sugars, the amount depending on the sugar. Less ethanol assimilation occurred with d-glucose than with d-xylose. The rate of ethanol consumption decreased as the concentration of glucose was increased, but some consumption still occurred when 2% glucose was present. The rate increased with the amount of oxygen available to the culture when d-xylose or ethanol was the carbon source. In most instances, estimates of consumption were based on the extent of incorporation of C from [1-C]ethanol into trichloroacetic acid-insoluble material. The results are pertinent to the use of P. tannophilus for the production of ethanol from d-xylose.
authors.affiliation: Molecular Genetics Group, Division of Biological Sciences, National Research Council of Canada, Ottawa, Canada K1A 0R6.
authors.forename: R
authors.initials: R
authors.lastname: Maleszka
authors.forename: H
authors.initials: H
authors.lastname: Schneider