灵芝胞外多糖分批发酵非结构动力学模型  

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

作　　者：李平作[1] 章克昌[1] 

机构地区：[1]无锡轻工大学生物工程学院

出　　处：《生物技术》1999年第3期24-26,34,共4页Biotechnology

摘　　要：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。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

关 键 词：灵芝 胞外多糖 分批发酵 非结构动力学 

分 类 号：TQ920.1[轻工技术与工程—发酵工程] TQ929