复合菌种固态发酵豆粕生产蛋白饲料的研究  

Study on solid fermentation production for protein feed from soybean meal by compound bacteria

作　　者：原海兵[1] 刘军[1] 孙东伟[1] 

机构地区：[1]四川理工学院生物工程系,四川自贡643000

出　　处：《粮食与饲料工业》2013年第6期46-50,共5页Cereal & Feed Industry

摘　　要：采用黑曲霉、米曲霉复合菌株固态发酵法生产豆粕饲料。研究了发酵培养基和发酵条件对固态发酵的影响,得到了最佳工艺条件,结果表明:接种总量0.75%,麸皮添加量5%,牛肉膏添加量0.2%,发酵温度30℃,发酵时间43h,粗蛋白质质量分数可达54.23%,蛋白酶活力达到776.2U/g。The fermented soybean meal was produced through solid fermentation by compound bacteria of Aspergillus niger and Aspergillus oryzae. The effects of the composition of fermentation medium and fermentation conditions on the protein con- tent of fermented soybean meal were studied. The optimum conditions were as follows： the inoculation of associate strain O. 75 %, the addition of wheat bran 5 %, the addition of beef extract 0. 2 %, at 30 ℃for 43 h. Under the conditions, the crude protein content could reach＂ 54.23% and protease activity reached 776.2 U/g.

关 键 词：复合菌种 豆粕 固态发酵 粗蛋白质 蛋白酶活性 

分 类 号：S816.4[农业科学—饲料科学]