Process for enzymatic hydrolysis of pretreated lignocellulosic feedstocks

Process for enzymatic hydrolysis of pretreated lignocellulosic feedstocks

  • CN 101,517,073 A
  • Filed: 08/30/2007
  • Published: 08/26/2009
  • Est. Priority Date: 08/31/2006
  • Status: Active Application
First Claim
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1. be used for and become the method for soluble sugar through pretreated lignin-cellulose material enzymically hydrolyse, this method comprises cellulase mixture is added in pretreated lignin-cellulose material, described cellulase mixture comprises the main cellulase mixture of cellobiohydrolase CBH1 and CBH2 and endoglucanase EG1 and EG2, described cellobiohydrolase CBH1 and CBH2 exist with 55% and 85% the amount of being lower than that is greater than or equal to described main cellulase mixture, and described CBH2 is to be defined as f C2Mark with respect to cellobiohydrolase CBH1 and CBH2 exist, described EG2 is to be defined as f E2Mark with respect to endoglucanase EG1 and EG2 exist, wherein:

  • When described cellobiohydrolase CBH1 and CBH2 being greater than or equal to 55% and be lower than 65% when being present in the main cellulase,Described f C2Value is more than or equal to 0.35 and less than 0.45, and described f E2Value is more than or equal to 0.15 and less than 0.35;

    Described f C2Value is more than or equal to 0.45 and less than 0.55, and described f E2Value is more than or equal to 0.15 and less than 0.25;

    Perhaps Described f C2Value is more than or equal to 0.45 and less than 0.55, and described f E2Value is more than or equal to 0.35 and less than 0.45;

    When described cellobiohydrolase CBH1 and CBH2 being greater than or equal to 65% and be lower than 75% when being present in the main cellulase,Described f C2Value is more than or equal to 0.25 and less than 0.35, and described f E2Value is more than or equal to 0.05 and less than 0.35;

    Described f C2Value is more than or equal to 0.35 and less than 0.45, and described f E2Value is more than or equal to 0.05 and less than 0.55;

    Described f C2Value is more than or equal to 0.45 and less than 0.65, and described f E2Value is more than or equal to 0.05 and less than 0.65;

    Perhaps Described f C2Value is more than or equal to 0.65 and less than 0.75, and described f E2Value is more than or equal to 0.15 and less than 0.55;

    When described cellobiohydrolase CBH1 and CBH2 being greater than or equal to 75% and be lower than 85% when being present in the main cellulase,Described f C2Value is more than or equal to 0.35 and less than 0.45, and described f E2Value is more than or equal to 0.05 and less than 0.25;

    Described f C2Value is more than or equal to 0.45 and less than 0.55, and described f E2Value is more than or equal to 0.15 and less than 0.65;

    Perhaps Described f C2Value is more than or equal to 0.55 and less than 0.65, and described f E2Value is more than or equal to 0.15 and less than 0.35.

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