A study on utilizing stage process and the multi-strains solid state fermentation for corn straw

Aim Utilizing stage process and the multi-strains solid state fermentation for corn straw , the fodder nutritive value of corn straw was improved.Methods The corn straws were pretreated with the ammonia and white-rot fungi Lx. Trichoderma koningii and high activity Aspergillus niger Sy, rumen bcterium X_4 and rumen yeast Y_2 were inoculated on pretreated corn straws powder for multi-strains co-fermentation . Optimal cultural condition was gained by orthogonal experiment.Results With the fermentation temperature 30℃ ,pH 5.0,after 9 days,the contents of raw proteins reached 24.61% while the degradation ratio of raw cellulose was 48.37%.Conclusion This method provided a new way of utilizing the corn straws to produce protein fodder.