【摘要】 研究并确定了在 SM型发酵罐 (容积为 50 0 0 0 L)中生产黄原胶的工艺路线和条件 :以淀粉 4% ,蛋白胨 0 .5% ,Ca CO3 0 .3 %为发酵培养基 ,在 p H为 7,温度为 2 8℃ ,发酵前期通气量为 0 .8,后期为 1 .0 ,接种量 1 0 %的条件下 ,发酵 72 h.发酵液最终黏度为 1 0 0 0 0 m Pa·s,产胶率为 3 % ,达到了黄原胶产品的工业化生产要求更多还原

【Abstract】 The conditions and technical procedure on fermentation of xanthan gum in SM fermentor (50000 L) are described. The medium is starch 4%, peptone 0.5%, CaCO 3 0.3%, and the conditions are controlled under pH 7, temperature 28 ℃, gas volume 0.8 in earlier phase and 1 in later phase on seed culture volume 10% respectively. Further tests made in 50000 L fermentor show that the viscosity and the yield of Xanthan gum are 10000 mPa·s and 3% after 72 h, which meets the need of industrial production.更多还原