灵芝胞外多糖分批发酵非结构动力学模型

在２Ｌ搅拌发酵罐上提出了描述了灵芝胞外多糖分批发酵过程中菌球生长、底物消耗和胞外多糖形成的非结构动力学模型。首先研究了灵芝分批发酵特性，结果表明该发酵过程属菌体生长和产物形成相偶联型。然后在总结文献的基础上，运用动力学模型，经过非线性回归，得到了模型中的参数值。通过计算机模拟，证明模型预测值与实际实验值具有良好的拟合性。

UNSTRUCTURED KINETIC MODLES OF EXOPOLYSACCHARIDES PRODUCTION BY BATCH FERMENTATION OF GANODERMA LUCIDUM

nstructured batch kinetics models were presented to describe growth of pellets, substrate consumption and exopolysaccharides formation in submerged fermentation by Ganoderma lucidum in a 2 L stirred fermentor. First, the batch fermentation properties had been studied, the results showed that fermentation by G. lucidum appeared to be a growth-associated process. Then , unstructured kinetic models grogosed in the literature were reviewed and applied. Parameters values were finally obtained applying an integral method using non-linear regression techniques. To simulate the growth of pellets, substrate consumption, and exopolysaccharides production the three models were transferred into a computer program. The results showed that the experiment data compare favorably with the outcome of computer simulations