A self-made bioreactor with a nylon cloth cassette immobilized C.roseus plant cells was used tostudy the indole alkaloid production in the“production phase”.The results show this bioreactor provided agood microenvir...A self-made bioreactor with a nylon cloth cassette immobilized C.roseus plant cells was used tostudy the indole alkaloid production in the“production phase”.The results show this bioreactor provided agood microenvironment for plant cells and was suitable for the culture of C.roseus cells to synthesize the indolealkaloids.A fuzzy multicritical optimal method was used to optimize the constructional and operating parametersof the immobilized plant cell reactor.The fuzzy optimization provide useful information for exploiting thelarge scale alkaloid production process.展开更多
A mathematic model is developed which is applied to analyze the main factors that affect electrode performance and to account for the process of reaction and mass transfer in gas-diffusion electrodes in contact with l...A mathematic model is developed which is applied to analyze the main factors that affect electrode performance and to account for the process of reaction and mass transfer in gas-diffusion electrodes in contact with liquid electrolytes. Electrochemical Thiele modulus φ^2 and electrochemical effectiveness factor η are introduced to elucidate the effects of diffusion on electrochemical reaction and utilization of the gas-diffusion electrode. Profile of the reactant along axial direction is discussed, dependence of electrode potential V on current density J, are predicated by means of the newly developed mathematical model.展开更多
从酒精发酵的代谢机理出发,在引入酶动力学、提出联合抑制的可逆图解式后导得理论速率方程。依据实验对固定化 K 字酵母生物催化剂进行的酒精生成动力学之研究表明:该过程具有酒精的不可逆及表现为随其浓度而变化的非竞争型抑制,葡萄糖...从酒精发酵的代谢机理出发,在引入酶动力学、提出联合抑制的可逆图解式后导得理论速率方程。依据实验对固定化 K 字酵母生物催化剂进行的酒精生成动力学之研究表明:该过程具有酒精的不可逆及表现为随其浓度而变化的非竞争型抑制,葡萄糖则呈现为反竞争性抑制,及动力学参数随底物初始浓度变化等特性。提出的酒精生成动力学模型基础方程为联合抑制方程,所确定的参数值具有高度的相关性。且预测效果良好,其中酒精浓度随反应器高度分布的预测误差仅为18.75%,从而推知反应器内流体流动形式接近于平推流。展开更多
基金Supported by the Naional Natural Science Foundation of China
文摘A self-made bioreactor with a nylon cloth cassette immobilized C.roseus plant cells was used tostudy the indole alkaloid production in the“production phase”.The results show this bioreactor provided agood microenvironment for plant cells and was suitable for the culture of C.roseus cells to synthesize the indolealkaloids.A fuzzy multicritical optimal method was used to optimize the constructional and operating parametersof the immobilized plant cell reactor.The fuzzy optimization provide useful information for exploiting thelarge scale alkaloid production process.
基金This researchis supported by Shanghai Education Committee(06-OZ-003)Shanghai Key Subject(p1501)
文摘A mathematic model is developed which is applied to analyze the main factors that affect electrode performance and to account for the process of reaction and mass transfer in gas-diffusion electrodes in contact with liquid electrolytes. Electrochemical Thiele modulus φ^2 and electrochemical effectiveness factor η are introduced to elucidate the effects of diffusion on electrochemical reaction and utilization of the gas-diffusion electrode. Profile of the reactant along axial direction is discussed, dependence of electrode potential V on current density J, are predicated by means of the newly developed mathematical model.
文摘从酒精发酵的代谢机理出发,在引入酶动力学、提出联合抑制的可逆图解式后导得理论速率方程。依据实验对固定化 K 字酵母生物催化剂进行的酒精生成动力学之研究表明:该过程具有酒精的不可逆及表现为随其浓度而变化的非竞争型抑制,葡萄糖则呈现为反竞争性抑制,及动力学参数随底物初始浓度变化等特性。提出的酒精生成动力学模型基础方程为联合抑制方程,所确定的参数值具有高度的相关性。且预测效果良好,其中酒精浓度随反应器高度分布的预测误差仅为18.75%,从而推知反应器内流体流动形式接近于平推流。
