SCP Production from Potato Waste by Multi-strain Fermentation of Aerospace Mutated Strains

Using the fine strains Asp.nigerZM-8 and Sac.cerevisiae YB-6 which were selected by aerospace mutation,Candida tropicalis and Geotrichum candidum mixed co-fermented with solid potato waste to produce high protein feed,and the conditions of co-fermented to produce high protein feed were optimized.The results showed that the optimal ratio of space multi-strain fermentation was 1.5 g of Sac.cerevisiae YB-6,2.0 g of Candida tropicalis,2.5 g of Geotrichum candidum,2.0 g of Asp.nigerZM-8.The optimum media was 4 g of sugar,7 g of ammonium sulfate,4 g of urea,2.5 mg/L of triacontanol.With above optimized conditions,the crude protein content in the product was up to 32.5%,reached 5.84 times of that in raw materials.