Effect of different ratios of glucose and xylose in the sugar
mixtures on CCR Various lignocellulosic biomasses can be
hydrolysed to yield diverse ratios of sugar mixtures (4), thereby,
influencing sugar utilization and CCR. To investigate the effects of
the sugar mixture on lactic acid fermentation, E. mundtii QU 25
was grown in batch fermentations with 3 ratios of sugar mixtures:
G50X25, G50X50, and G25X50. In all fermentations, glucose was
completely utilized within 18 h with similar consumption rates,
while xylose consumption was quite different (Table 1, Fig. 2).
With G50X25 (Fig. 2A) and G50X50 (Fig. 2B), some xylose was
consumed in the presence of glucose while E. mundtii QU 25 could
consume only 42.9% and 61.4% of xylose, respectively, even after
18 h when the glucose was exhausted. On the other hand, G25X50
utilized glucose and xylose simultaneously, with 98.0% of xylose
consumed linearly (with a constant consumption rate) (Table 1,
Effect of different ratios of glucose and xylose in the sugarmixtures on CCR Various lignocellulosic biomasses can behydrolysed to yield diverse ratios of sugar mixtures (4), thereby,influencing sugar utilization and CCR. To investigate the effects ofthe sugar mixture on lactic acid fermentation, E. mundtii QU 25was grown in batch fermentations with 3 ratios of sugar mixtures:G50X25, G50X50, and G25X50. In all fermentations, glucose wascompletely utilized within 18 h with similar consumption rates,while xylose consumption was quite different (Table 1, Fig. 2).With G50X25 (Fig. 2A) and G50X50 (Fig. 2B), some xylose wasconsumed in the presence of glucose while E. mundtii QU 25 couldconsume only 42.9% and 61.4% of xylose, respectively, even after18 h when the glucose was exhausted. On the other hand, G25X50utilized glucose and xylose simultaneously, with 98.0% of xyloseconsumed linearly (with a constant consumption rate) (Table 1,
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