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Bioresources and Bioprocessing
Fig. 4 | Bioresources and Bioprocessing

Fig. 4

From: Model-based optimization of Scheffersomyces stipitis and Saccharomyces cerevisiae co-culture for efficient lignocellulosic ethanol production

Fig. 4

Saccharification and fermentation of rice straw (a) and sugarcane bagasse (b) by S. stipitis/S. cerevisiae co-culture in comparison with single-strain culture. Time profiles of ethanol in S. stipitis (blue), S. cerevisiae (green) and S. stipitis/S. cerevisiae (purple) culture are compared. The symbols represent measured values while the lines represent predicted values based on the kinetic model. c Comparison of ethanol production in sugarcane bagasse at different cell ratio, f = 1.00, f = 1.70 and f = 1.94. Experiments were conducted in SSF configuration in which enzymes and yeast cells are added simultaneously into 6 % WIS pretreated rice straw or 10 % WIS pretreated sugarcane bagasse. For comparison purpose, all experiments are initiated with the same total cell concentration of 0.02 g cell/g WIS. The optimized cells ratio for the co-culture as predicted by the model for each type of feedstock is f opt = 1.70 for rice straw and f opt = 1.94 for sugarcane bagasse

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