An aerobic plant fibrous-bed bioreactor was improved poly-γ-glutamic acid production by chemically modifying sugarcane bagasse
Poly-γ-glutamic acid (PGA) is a naturally occurring homopolymer that consists of D- and L-glutamic acid units via amide linkages between their α-amino and γ-carboxylic groups.As a promising high-value product,PGA and its derivatives have been successfully applied in hydrogels,humectants,flocculants,thickeners,dispersants,cryoprotectants,drug carriers,as well as cosmetic and biological food additives because of its water-soluble,biodegradable,edible,and non-toxic qualities toward humans and environment.Therefore,an effective fermentation approach must be developed to satisfy the market demand.Chemically modified immobilized material can enhance the absorption capacity and bonding strength of cells to the immobilization support,and cells firmly bound to the material surface favor fermentation production.As such,this aerobic plant fibrous-bed bioreactor system must be optimized to improve efficiency and stability with the use of low-cost raw materials for PGA production.
Bao Tang Yongxiang Jiang Zongqi Xu Peng Lei Jinfeng Liang Xiaohai Feng Hong Xu
College of Food Science and Light Industry,Nanjing Tech University,Nanjing,211816,China
国内会议
上海
英文
1-4
2015-11-06（万方平台首次上网日期，不代表论文的发表时间）