COMBINED USE OF AN ENDO-PROTEASE OF THE M35 FAMILY AND AN EXO-PROTEASE OF THE S53 FAMILY IN THE FERMENTATION OF STARCH

COMBINED USE OF AN ENDO-PROTEASE OF THE M35 FAMILY AND AN EXO-PROTEASE OF THE S53 FAMILY IN THE FERMENTATION OF STARCH

The present invention relates to improved processes for producing ethanol from starch-containing materials by the combined use of at least one endo-protease and at least one exo-protease in an SSF process, and wherein the endo-protease is selected from a family M35 endo-protease and the exo-protease...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SOONG, Chee-Leong
Format: Patent
Sprache:eng ; fre
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:The present invention relates to improved processes for producing ethanol from starch-containing materials by the combined use of at least one endo-protease and at least one exo-protease in an SSF process, and wherein the endo-protease is selected from a family M35 endo-protease and the exo-protease is selected from a family S53 exo-protease. More particularly the exo-protease should make up at least 5% (w/w) of the protease mixture. La présente invention concerne des procédés perfectionnés pour la production d'éthanol à partir de matières contenant de l'amidon par l'utilisation combinée d'au moins une endoprotéase et d'au moins une exoprotéase dans un procédé SSF, l'endoprotéase étant choisie parmi les endoprotéases de la famille M35 et l'exoprotéase étant choisie parmi les exoprotéases de la famille S53. Plus particulièrement, l'exoprotéase doit constituer au moins 5% (p/p) du mélange de protéases.