摘要
对灰树花真菌发酵工艺参数pH值和溶氧进行优化研究表明,pH值及溶氧对灰树花菌体及胞内外多糖产量影响较大,优化的工艺参数为:溶氧75%,pH值为5.1(0h～96h),pH值为4.2(96h～160h),此条件下菌体、胞内外多糖产量分别提高23.02%、28.95%、25.95%,表明该优化设计工艺切实可行。
The effects of pH value and dissolved oxygen（DO） on the production of Grifola frondosa polysaccharides were studied.The result showed that both pH value and DO had significant impacts on the production of mycelium,intracellular and extracellular polysaccharides.The optimized fermentation parameters were determined as follows： DO 75%,pH value 5.1（0h ～ 96h） and pH value 4.2（96h ～ 160h）.Under above conditions,the yields of mycelium,intracellular and extracellular polysaccharides increased by 23.02%,28.95% and 25.95%,respectively,indicating the optimized process was feasible.
出处
《中国酿造》
CAS
2012年第1期116-118,共3页
China Brewing
基金
衡水学院大学生创新课题项目(2010031)
关键词
灰树花
多糖
溶氧
PH值
Grifola frondosa
polysaccharide
dissolved oxygen
pH value
