Enhanced Production of Surfactin by Bacillus subtilis E8 Mutant Obtained by Ion Beam Implantation
作者: Guohong GongZhiming ZhengHua ChenChengling YuanPeng WangLiming YaoZengliang Yu
作者单位: 1ey Laboratory of Ion Beam Bioengineering, Chinese Academy of Sciences, Hefei P.O. Box 1126, CN-230031 Anhui, PR China
2Key Laboratory of Ion Beam Bioengineering, Chinese Academy of Sciences, Hefei P.O. Box 1126, CN-230031 Anhui, PR China
3Key Laboratory of Ion Beam Bioeng
刊名: Food Technology and Biotechnology, 2009, Vol.47 (1), pp.27-31
来源数据库: Directory of Open Access Journals
关键词: Bacillus subtilisSurfactinIon beam implantationBiosurfactantModified bioreactor
原始语种摘要: The application of surfactin is hampered by its high production cost. In this study, a high-producing surfactin mutant obtained by ion beam implantation, Bacillus subtilis E8, has been used to produce surfactin. The production in a modified bioreactor and the properties of the surfactin produced by the mutant strain have been investigated. The results indicate that the modified bioreactor with a cell/foam recycler showed an advantage as compared to a simple reactor. The concentration of crude surfactin (including recovery from two parts of foam and broth fractionation) increased significantly from 0.75 to 10.26 g/L. Time course profiles showed that surfactin produced by B. subtilis E8 was growth-associated during the exponential phase of biomass, and the growth-associated product...
全文获取路径: DOAJ  (合作)
分享到:
来源刊物:
影响因子:0.977 (2012)

×
关键词翻译
关键词翻译
  • subtilis 微小
  • bioreactor 生物反应器
  • mutant 突变体
  • concentration 浓度
  • cultivation 栽培
  • produced 出品
  • crude 生的
  • micelle 胶束
  • exponential 指数的
  • excellent 优秀的