Genetically modified trehalose-expressing yeasts and fermentation processes using such genetically modified yeasts

The present invention relates to genetically engineered yeasts having a heterologous trehalase gene and fermentation processes for using such yeasts. The yeasts can express trehalase in a quantity sufficient to convert significant amounts of trehalose to glucose, thereby improving the yield of the p...

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Bibliographische Detailangaben
Hauptverfasser: Rush, Brian J, Poynter, Gregory Michael, Jauert, Peter Alan
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to genetically engineered yeasts having a heterologous trehalase gene and fermentation processes for using such yeasts. The yeasts can express trehalase in a quantity sufficient to convert significant amounts of trehalose to glucose, thereby improving the yield of the product in a fermentation, and/or reducing or eliminating the need to add exogenous trehalase to the fermentation. The yeasts can also include other heterologous genes for expressing enzymes useful for improving yield and/or for reducing or eliminating the need to add exogenous enzymes to the fermentation.