Figure 5. The 3D response surface curves of the combined effects
of initial xylan concentration, mixed time and MgCO3
concentration on succinic acid production and fermentation profiles
under optimal conditions.
(A) initial xylan concentration and mixed time at fixed level of
MgCO3 concentration, (B) initial xylan concentration and
MgCO3 concentration at fixed level of mixed time, (C)
mixed time and MgCO3 concentration at fixed level of
initial xylan concentration, (D) fermentation profiles of T.
thermosaccharolyticum M5 and A. succinogenes 130Z under optimal
conditions.