COMPOSITION FOR INCREASING SACCHARIFICATION EFFICIENCY OF BIOMASS, METHOD FOR INCREASING SACCHARIFICATION EFFICIENCY OF BIOMASS AND METHOD FOR PREPARING BIOETHANOL DERIVED FROM BIOMASS ON A LARGE SCALE USING CHAPERONE PROTEIN
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United States of America Patent
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Issued Date -
Oct 10, 2013
app pub date -
Dec 6, 2012
filing date -
Apr 10, 2012
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Abstract
The present invention relates to a novel method for increasing saccharification efficiency by adding chaperone protein during saccharification process, more precisely a composition for increasing saccharification efficiency of biomass containing cellulose using peroxiredoxin (Prx) protein and a method for increasing glucose yield by using the same. The conventional saccharification process has the disadvantage of decreasing cellulase activity, suggesting that the high priced saccharogenic enzyme has to be continuously supplied since the saccharogenic enzyme is losing its activity continuously by reducing sugar through the whole saccharification process. Therefore, to increase saccharification efficiency, the present invention provides a method characterized by increasing saccharification efficiency by preventing cellulase from losing its activity throughout the whole saccharification process by using chaperone protein, particularly Prx protein herein, together with cellulase. The method of the present invention, therefore, can overcome the disadvantage of the conventional saccharification process.
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