摘要
以玉米秸秆为原料,经多菌体发酵生产蛋白饲料。在对培养基进行简单优化的基础上,通过正交试验分析木霉、青霉、黑曲霉接种量,青霉、酵母接入时间和发酵时间对该试验的影响,得出最佳发酵工艺。结果显示,发酵固形物蛋白含量普遍降低,发酵液中可溶性蛋白含量最高为512.36μg/ml,与发酵前相比,增幅为112.4%,还原糖含量与发酵前有所降低。
Using multi-bacteria to convert corn stalk into protein feed.On the basis of simple optimizated medium,this paper through an orthogonal experiment finds out the optimum technics about fermentation after analyzing the influences of trichoderma inoculum, penicillium inoculum, aspergillus niger inoculum, and the respective inoculating time of penicillium and yeast as well as its fermentation time. The results in this paper showed that protein content of fermentation solids generally reduces after this experiment, and the maximum content of soluble protein mounts up to 512.36 μg/ml, which causes an increase of 112.4% compared with that before fermentation, and reducing sugar content basically keeps a balance with the pre-fermentation one. This experiment also lays a foundation for further researches on the utilization of cornstalk.
出处
《饲料工业》
2007年第23期22-26,共5页
Feed Industry
关键词
多菌体
混合发酵
蛋白饲料
multi-bacteria
mixed fermentation
protein feed
