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Study on fermentation production of polysaccharide by cordyceps militaris

Yingchen Wang

Abstract

The exo-polysaccharide production by fermentation with cordyceps militaris was studied and the factors affecting the exo-polysaccharide production were analyzed while the optimum medium and reaction conditions were obtained.The optimum media composition was: 12% sucrose,2% corn paste,2% yeast extract and 0.45% KNO3.The fermentation condition was: 6.5 pH at 20℃.At this condition,the exo-polysaccharide production rate was 1.188 g/100 ml,mycelium dry weight was 1.221 g/100 ml.

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Key concepts: Cordyceps militaris, Polysaccharide, Fermentation, Mycelium, Food science, Sucrose, Yeast extract, Chemistry