Dynamic Models of Cell Growth and its β-Carotene Synthesis from the Red Yeast Mutant

The fermentative kinetic properties of different batches from the red yeast mutant strain GL-5 with high productive β-carotene were investigated by using a 5-L fermenter. Based on the Logistic equation and the Ganden classification, the kinetic models for the cell growth, base material consumption and yield of product were obtained. These mathematic models were in good consistent with the experimental values, and could provide theoretic basis for controlling and further pilot fermentative production of β-carotene from this mutant strain GL-5.