Fig. 2

Improvement of glucose yield by lipopeptide in the enzymatic hydrolysis of DA-GJG. The improvements by lipopeptide when utilizing CEL, EES and EEE are shown in a. The influences of temperature, CEL loading and lipopeptide loading on the enhancement are shown in b–d, respectively. “Control” represented the system containing only substrate and enzyme. “Lipopeptide” represented the system containing lipopeptide, substrate and enzyme. Excepting indicated in the figures, the loadings of enzyme and lipopeptide were 10 mg/g glucan and 10 mg/g substrate, respectively. The temperature was 50 °C and the reducing sugars were measured after 24 h. The reducing sugar releasing was given as the glucose yield according to the cellulose content because cellulose was the main polysaccharide of DA-GJG and only cellulase was used here