Fig 1.
Schematic representation of the split-cylinder internal-loop airlift bioreactor.
a) air pump; b) outflow effluent duct; c) silicone stopper; d) air-in filter; e) acid/alkali solution reservoir; f) culture medium reservoir; g) and i) peristaltic pumps; h) antifoam solution reservoir; j) gas diffuser; k) pH electrode; l) pH controller; m) baffle; n) effluent reservoir.
Fig 2.
Steady-state biomass (A) and substrate (B) concentrations at different dilution rates by C. wangnamkhiaoensis in continuous culture. ●, glucose; ◼, maltose; ◆, starch.
Fig 3.
Steady-state biomass yield (A) and biomass productivity (B) at different dilution rates by C. wangnamkhiaoensis in continuous culture. ●, glucose; ◼, maltose; ◆, starch.
Fig 4.
Steady-state α-amylase volumetric (A) and specific (B) activities versus dilution rate for continuous cultures of C. wangnamkhiaoensis. ◼, maltose; ◆, starch.
Table 1.
Kinetic parameters of α-amylase production by C. wangnamkhiaoensis in steady-state continuous cultures.
Fig 5.
Steady-state α-amylase volumetric (A) and specific (B) productivities versus dilution rate for C. wangnamkhiaoensis continuous cultures. ◼, maltose; ◆, starch.