What question did this study set out to answer?

To evaluate whether spontaneously arising catabolite-derepressed yeast mutants and spheroplast fusion can improve fermentation rate and sugar metabolism in brewing strains.

September 1, 1986Journal of the American Society of Brewing Chemists

The Use of Catabolite Derepression as a Means of Improving the Fermentation Rate of Brewing Yeast Strains

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To evaluate whether spontaneously arising catabolite-derepressed yeast mutants and spheroplast fusion can improve fermentation rate and sugar metabolism in brewing strains.
Selectively isolated spontaneously arising catabolite-derepressed mutants from Saccharomyces diastaticus and S. cerevisiae strains.
Conducted spheroplast fusion between an S. diastaticus diploid and a lager brewing yeast, subsequently isolating a derepressed hybrid mutant.
Derepressed mutant strains exhibited improved maltose utilization, elevated ethanol production, and greater glucoamylase activity compared to wild-type strains.
The fusion mutant derived from S. diastaticus and lager yeast achieved derepression for both maltose and starch utilization alongside increased enzymatic activity.

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Implication

Experimental study demonstrates enhanced maltose utilization and ethanol yield in derepressed brewing yeasts, suggesting spheroplast fusion improves fermentation efficiency.

Cite This Study

Jones et al. (1986) studied this question.

synapsesocial.com/papers/6a9993b08dfdcd5c4ea5f0ef https://doi.org/10.1094/asbcj-44-0161

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Implication

Experimental study demonstrates enhanced maltose utilization and ethanol yield in derepressed brewing yeasts, suggesting spheroplast fusion improves fermentation efficiency.

The Use of Catabolite Derepression as a Means of Improving the Fermentation Rate of Brewing Yeast Strains

Key Points

Discussion

Implication

Cite This Study

The Use of Catabolite Derepression as a Means of Improving the Fermentation Rate of Brewing Yeast Strains

Key Points

Discussion

Implication

Cite This Study

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