酿酒酵母工程菌分批发酵产UMP动力学模型

基金项目:

国家自然科学基金项目(31301410)；科研基地建设—科技创新平台—国家自科基金配套(北京市级,19005418040)；北京市级大学生科学研究与创业行动计划(SJ201402065)；

详细信息

Kinetic models for uridine 5'- monophosphate batch fermentation by Saccharomyces cerevisiae

School of Food Science and Technology,Beijing Technology & Business University
Beijing Engineering and Technology Research Center of Food Additives,Beijing Technology & Business University

摘要: 对酿酒酵母工程菌产UMP的分批发酵动力学进行了研究。通过对Logistic方程、Leudeking-Piret方程和类Luedeking-Piret方程进行参数估计和非线性数据拟合,分别得到发酵过程中菌体干重、UMP产量、残糖含量动力学模型及模型参数。对拟合曲线进行分析,结果表明模型值与实验值拟合性良好,线性拟合度大于98%,所建立模型能较好的反映UMP的分批发酵过程。
- 尿嘧啶核苷酸 /
- 线性拟合 /
- 动力学
Abstract: The dynamic models for uridine 5'- monophosphate batch fermentation by Saccharomyces cerevisiae recombinant strain was studied. The kinetic models for dry cell weight,the content of uridine 5'- monophosphate and residual sugar were proposed with the Logistic equation,Leudeking- Piret equation and class Luedeking- Piret equation though the parameters estimation and nonlinear least- squares fitting method.The results showed that the experimental values and the fitted values fit well by analyze fitted curve,the fit of the linear over 98%.The models can reflect the batch fermentation of uridine 5'- monophosphate well.
- uridine 5'-monophosphate; /
- linear fit /
- kinetics