
Optimization of Process Variables 49
FIGURE 1 Impact of selected fermentation factor assigned level on 2, 3-butanediol production
by Klebsiella pneumoniae. Impact of selected factor assigned levels on 2,3-butanediol production
by Klebsiella pneumoniae. X-axis represents assigned levels of selected factor and Y-axis
represents 2,3-butanediol production (g/l). (a) temperature, (b) pH, (c) agitation, (d) inoculum
size, (e) acetic acid, and (f) succinic acid ...