Production of feed protein from apple pomace and corn stalks mixture fermented by compound microorganisms of space mutagenesis

In this study,the apple pomace and corn stalks mixture was fermented by compound mutagenic strains,Aspergillus niger ZM-8,Saccnaromyces cerevisiae YB-6,Candida tropicalis and Geotrichum candidum,to produce feed protein.The results showed the optimum proportion of mixture was: apple pomace 70%,corn stalks 10%,bran 15% and accessories 5%.The optimum auxiliary materials were as follows:2 g urea,2 g ammonium sulphate and 1 g salt.And the optimum proportion of compound strains was: 0.5 g Aspergillus niger ZM-8,1.5 g Saccnaromyces cerevisiae YB-6,1.0 g Geotrichum candidum and 1.5 g Candida tropicalis.Under all these optimum conditions,the crude protein content of the products reached to 28.2%.