Fig. 3From: Reducing glucoamylase usage for commercial-scale ethanol production from starch using glucoamylase expressing Saccharomyces cerevisiaeThe fermentation performance of glucoamylase expressing yeast strains using cassava starch in small and large-scale fermentations. Glucose (a) and ethanol concentration (b) produced by the CIBTS1522 or the parental strain supplemented with or without α-amylase and glucoamylase under test tube conditions. c–e represent the reducing sugars (c), ethanol content (d), and cell count (e) under 50 L-scale fermentation condition by the parental and CIBTS1522 strains supplemented with different dosages of glucoamylase. GA glucoamylase, AMS α-amylaseBack to article page