Effects of Initial and Adding Carbon Sources on Production of Gellan Gum during Batch Fermentation
CHEN Pinghong,YANG Shengyu(College of Life Science,Henan University,Henan Kaifeng 475004,China)
In this paper,selection of initial carbon sources of gellan gum batch fermentation and technological conditions of adding carbon sources were studied.By single factor optimization,the results showed that maltose was the best initial carbon source,and its best concentration was 6%.By the study on technological conditions of adding carbon sources,it was determined that the best way of maltose addition was one-time adding with concentration of 2.5% when the fermentation time was 18 h,the yield of gellan gum was 13.86 g/L,and it's increased by 18.8% than the original strain.
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