黄原胶摇瓶发酵条件的优化研究

Optimization of fermentation conditions of xanthan gum in shaking flasks

以甘蓝黑腐病黄单胞菌ZZ 1(XanthomonascampestrisZZ 1)为生产菌株 ,进行了摇瓶条件下黄原胶发酵条件的优化研究 ,得到最佳摇瓶发酵条件为pH 7.2 ,CaCO3 0 .30 % ,培养温度 30℃ ,装料量为 2 0 % ,最终成品粘度可达 14 0 0cp ,较基本培养条件提高了 16 5 3% .

Xanthomonas campestris ZZ 1 was used as production strain to study the optimization of fermentation conditions of xanthan gum in shaking flaves.And the optimum fermentation conditions were as follows:pH 7.2,CaCO 3 0.3%, temperature 30℃,contents of medium in flasks 20%.viscosity of finished products were 1 400 cp,which increased by 16.53% compared with the basic culture conditions.