Figure 2

Measured concentrations during duplicate fed-batch SSCF of wheat straw (8%-11% WIS) showing glucose (black circle), xylose (black square) and ethanol (black triangle) when using different enzyme feed strategies: (I) Feed profile A, (II) Feed profile B, (III) Feed profile C, (IV) Feed profile D. The mean standard deviation () is given for the concentration profile and illustrated graphically at the right end of each profile.