supplemented after 24 hours with the other sugar (that
is, glucose added to the xylose culture, and vice versa).
For the initial 24-hour cultivation on 35 g/L glucose, the
average glucose-consumption rate was 0.65 g/L/h (Table
2). Xylose was then introduced to give a final concentration
of 35 g/L at 24 h. During the next 31 hours (the
period from 24 to 55 hours), xylose was consumed at an
average of 0.38 g/L/h, whereas the glucose consumption
rate decreased to 0.28 g/L/h (Figure 3A; Table 2). However,
the total sugar-consumption rate was 0.66 g/L/h,
which was nearly equal to the rate before xylose supplementation.
Similar results were obtained when glucose
was introduced after 24 hours to the culture initiated
with xylose (Figure 3B; Table 2,); the glucose was consumed
at 0.39 g/L/h and the xylose-consumption rate
reduced from 0.63 g/L/h to 0.28 g/L/h. The total sugarconsumption
rate of 0.67 g/L/h was very close to the
supplemented after 24 hours with the other sugar (thatis, glucose added to the xylose culture, and vice versa).For the initial 24-hour cultivation on 35 g/L glucose, theaverage glucose-consumption rate was 0.65 g/L/h (Table2). Xylose was then introduced to give a final concentrationof 35 g/L at 24 h. During the next 31 hours (theperiod from 24 to 55 hours), xylose was consumed at anaverage of 0.38 g/L/h, whereas the glucose consumptionrate decreased to 0.28 g/L/h (Figure 3A; Table 2). However,the total sugar-consumption rate was 0.66 g/L/h,which was nearly equal to the rate before xylose supplementation.Similar results were obtained when glucosewas introduced after 24 hours to the culture initiatedwith xylose (Figure 3B; Table 2,); the glucose was consumedat 0.39 g/L/h and the xylose-consumption ratereduced from 0.63 g/L/h to 0.28 g/L/h. The total sugarconsumptionrate of 0.67 g/L/h was very close to the
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