文章与专利 1. Dan Zhang, Zongqi Xu, Hong Xu et al. Improvement of Poly(γ-glutamic acid) Biosynthesis and Quantitative Metabolic Flux Analysis of a Two-stage Strategy for Agitation Speed Control in the Culture of Bacillus subtilis NX-2. Biotechnology and Bioprocess Engineering. 2011,16: 1144-1151. 2. Dan Zhang, Xiaohai Feng, Zhe Zhou, Yang Zhang, Hong Xu. Economical production of poly(γ-glutamic acid) using untreated cane molasses and monosodium glutamate waste liquor by Bacillus subtilis NX-2. Bioresource Technology. 2012, 114: 583-588. 3. Dan Zhang, Xiaohai Feng, Sha Li, Fei Chen, Hong Xu. Effects of oxygen vectors on the synthesis and molecular weight of poly(γ-glutamic acid) and the metabolic characterization of Bacillus subtilis NX-2. Process Biochemistry. DOI：10.1016/j.procbio.2012.07.029. 4. Jun Yao, Hong Xu, Ningning Shi, Xin Cao,Xiaohai Feng, Sha Li, Pingkai Ouyang. Analysis of carbon metabolism and improvement of γ-polyglutamic acid production from Bacillus subtilis NX-2. Applied Biochemistry and Biotechnology. 2010, 160:2332–2341 5. Qun Wu, Hong Xu, Dan Zhang, Pingkai Ouyang. A Novel Glutamate Transport System in Poly(γ-Glutamic Acid)-Producing Strain Bacillus subtilis CGMCC 0833. Applied Biochemistry and Biotechnology. 2011, 164: 1431-1443. 6. Qun Wu, Hong Xu, Hanjie Ying, Pingkai Ouyang. Kinetic analysis and pH-shift control strategy for poly(?-glutamic acid) production with Bacillus subtilis CGMCC 0833. Biochemical Engineering Journal. 2010, 50:24-28. 7、徐虹，欧阳平凯，李霜，韦萍. 利用枯草芽孢杆菌NX-2 生产γ-聚谷氨酸及其盐和谷胱甘肽及其前体物，中国发明专利ZL021517460， 8、徐虹，王军，韦萍，欧阳平凯。纤维素接枝聚谷氨酸离子交换材料及其制备方法和废水处理中的应用，中国发明专利ZL200510037775.7
