improved processes for the production of ethanol from cellulosic substrates containing xylose using genetically modified yeast strains

摘要

these are recombinant host cells that have a heterologous polynucleotide that encodes a hexose transporter and a heterologous polynucleotide that encodes a xylose isomerase, in which cells are able to ferment xylose in the presence of glucose and under growth limited by oxygen. processes of fermentation of saccharified material are also described with the use of recombinant cells to produce ethanol in higher yields.