Research on Microbial Fermentation of Potato Residue for Animal Feed

Abstract

The aim of this study was to research on microbial fermentation of potato residue for animal feed. In the fermentation production of single cell protein (SCP) feed, potato starch residue was employed as main material, and bran together with horse bean straw powder were used as supplementary material. The mixed raw material was degraded with cellulose enzyme, and then was scarified with scarifying koji of Aspergilla Niger and Trichoderma koningii to form a solid degradation mixture. The rate of inoculating amount was 8:1.5:0.5. The quality index of SCP feed including protein, rude starch and sensory characteristics were analyzed. The results showed that the protein content of the fermented product was increased from 4.08% to 16.52%, raised by 12.44%, and the bad smell was also eliminated after fermentation. Multi-strains fermentation is one of the feasible technique approaches to resolve the problem of potato starch residue.