Abstract
The fermentation of cellodextrins by eight yeast species capable of fermenting cellobiose was monitored. Only two of these species, Torulopsis molischiana and T. wickerhamii, were able to ferment β-glucosides with a degree of polymerization between one and six. These two species showed exocellular β-glucosidase activity. Four other species were able to ferment cellotriose, and the last two species only fermented cellobiose. These latter six species produced a β-glucosidase capable of attacking cellodextrins, but this enzyme was endocellular.
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