Shaanxi R&D Center of Biomaterials and Fermentation Engineering;
School of Chemical Engineering;
Northwest University;
Xi'an 710069;
China;
Shaanxi Key Laboratory of Degradable Biomedical Materials;
School of Chemical Engineering;
Northwest Univer-sity;
Xi'an 710069;
China;
类人胶原蛋白; 生产力; 代谢产物; 响应面法; 重组大肠杆菌; 响应曲面法; 三羧酸循环; 碳氮比;