Abstract
Flocculent yeast Saccharomyces cerevisiae YF234 (MATa ura3-52 trp1Delta2 his ade 2-1 can1-100 sta1 FLO8) cells overexpressing glyoxalase I and having strong flocculation ability were permeabilized with isopropyl alcohol and ethanol under various conditions. The treatment with 40% isopropyl alcohol significantly improves the initial reaction rates of recombinant flocculent yeast cells. Moreover, the reactivity of permeabilized flocculent yeast cells was similar to that of dispersed cells with EDTA. On the other hand, the flocculation ability of yeast cells was not affected by the treatment with alcohol solutions of various concentrations and treatment time length. Therefore, the recombinant flocculent yeast cells permeabilized with alcohol are very effective whole cell biocatalysts.
Published Version
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