The Cadida atilis and Aspergillus niger were used on the solid-state fermentation of the residue of yam diosgenin to produce protein feedstuff.The effect of inoculation quantity,temperature,solid-liquid ratio,time and ventilation on the fermentation was investigated.Basing on single strain fermentation,co-fermentation by Cadida atilis and Aspergillus niger were also examined.The results showed that the efficiency of co-fermentation was higher than that of single strain.The protein content of fermented product increased to 13.98% ultimately unde...
