Optimizing on liquid culture media of Cordyceps sinensis mycelia

The liquid culture media of Cordyceps sinensis mycelia was optimized by means of orthogonal analysis.The results showed that the optimal medium for the mycelia was 1.25% glucose,1.25% sucrose,0.02% peptone,0.062 5% yeast powder,0.025% KH2PO4,0.012 5% MgSO4·7H2O,0.002 5% VB1 and pH natural.In the cultural condition of 24 ℃ and 192 h,the mycelia biomass reached to 19.5 g/L,which was as 1.2~1.5 times as the amount with the previous way.