Differences in the flocculation mechanism of Kluyveromyces marxianus and Saccharomyces cerevisiae

摘要

A study of the flocculation mechanism of aKluyveromyces marxianus strain, as compared with a strain ofSaccharomyces cerevisiae, is described. The involvement of cell wall proteins in the yeast's flocculation mechanism was studied by methyl-esterification or pepsin or acid phosphatase incubation of the cells. The influence of several ions on the flocculation mechanism was assayed. The obtained results indicated that the structure and/or the spatial arrangement of the cell wall groups involved in flocculation are not the same inK. marxianus as inS. cerevisiae.