The Kinetic Models for Biomass and Extracellular Polysaccharide of Ganoderma tsugaae

Ganoderma tsugae has long been a well known medicinal mushroom and it has many pharmacological properties. The mathematical relationship of productions from G. tsugae is quite interested from industrial fermentation to predict and control the bioprocess. Therefore, the kinetic models of biomass and extracellular polysaccharide (EPS) by G. tsugae were studied in a batch cultivation at the optimal condition. The pellet of mycelium was described by the cube-root equation whereas the extracellular polysaccharide was explained by Luedekin-Piret equation. The parameters of booth equations determine by observed experiment and algorithm solving. The correlation between the experimental values and predicted models of biomass and EPS for G. tsugae obtained the high R-square at 0.9605 and 0.9916, respectively. The both kinetic models may be useful to predict the both productions of G. tsugae.