saccharomyces cerevisiae strain, and, use of a saccharomyces cerevisiae strain

摘要

The present invention relates to a method of preparing a saccharomyces cerevisiae sugar fermentation strain capable of fermenting xylose, wherein said method comprises different process steps. The method comprises conjugating a first sporulated saccharomyces cerevisiae strain with a second haploid saccharomyces cerevisiae strain. consequently, screening for conjugate cells is performed by growing such conjugate cells and verifying that conjugate cells exhibit basic morphology by microscopic inspection. consequently, the creation of a conjugate cell mixture is performed by subjecting the mixture to continuous culture of lignocellulose in chemostat and obtaining sugar fermentation of saccharomyces cerevisiae cells capable of fermenting xylose. The invention also comprises strains obtained by said method.