title: Studies on production of pullulan by the feed batch fermentation.
abstract: The feed-batch fermentation of pullulan was investigated based on the conditions of batch fermentation. The optimal conditions of pullulan fermentation were determined by the investigation on the effect of feed mode, initial feed time, intermittent time, and composition of the feed solution on parameters such as productivity, conversion yield, biomass, dissolved oxygen (DO), pH of the fermentation broth, viscosity of the fermentation broth and molecular weight of the product. Above 70% of conversion yield and 100 kD of average molecular weight of the product was obtained at the optimal conditions.
authors.affiliation: State Key Laboratory of Microbial Resources, Chinese Academy of Sciences, Beijing, China.
authors.forename: W
authors.initials: W
authors.lastname: Sun
authors.forename: T
authors.initials: T
authors.lastname: Zhou
authors.forename: H
authors.initials: H
authors.lastname: Xie
authors.forename: N
authors.initials: N
authors.lastname: Jiang
authors.forename: Y
authors.initials: Y
authors.lastname: Ren
mesh_terms: D000645:Ammonium Sulfate; D001203:Ascomycota / Q000378:metabolism*; D019149:Bioreactors; D003470:Culture Media; D005285:Fermentation; D005936:Glucans / Q000096:biosynthesis*; D006863:Hydrogen-Ion Concentration; D013213:Starch / Q000378:metabolism*
chemical_list: D003470:Culture Media; D005936:Glucans; C009109:pullulan; D013213:Starch; D000645:Ammonium Sulfate