苹果渣发酵生产蛋白饲料的混合菌配比研究

Study on Mixed Bacteria Ratio in Production of Feed Protein by Approach of Apple Pomace Fermentation

对苹果渣发酵生产蛋白饲料的混合菌配比进行研究。在单菌种发酵实验的基础上,进行双菌种、三菌种不同混合比发酵实验,确定获得蛋白质含量最高的混合菌配比。实验结果表明,最优菌种比例为,黑曲霉∶枯草芽孢杆菌∶酿酒酵母=1∶1∶2时,苹果渣发酵后的粗蛋白质含量为13.5%,较未发酵时的7.2%提高了88%。

In this paper,mixed bacteria ratio in apple pomace fermentation was studied.On the basis of a single fermentation bacteria experiment,the pairs of strains,three strains of different mixing ratio fermentation experiments were used to determine the proportion of mixed bacteria to achieve highest protein content.The results show that the optimal ratio is that Aspergillus niger strains∶Bacillus subtilis∶Saccharomyces cerevisiae equals 1∶1∶2.In this condition,after fermentation of apple pomace,the crude protein content is 13.5%,which has 88% increase compared with previous content,which is 7.2%.