微生物转化麦芽根为蛋白饲料的研究

Study on Microble Translating Wheat Germ Shoot to Protein Forage

通过组合发酵确定黑曲霉、产朊假丝酵母、扣囊拟内孢霉为发酵麦芽根生产酸性蛋白酶蛋白饲料的最佳菌种组合。发酵培养基组成为麦芽根 85 % ,麸皮15 % ,(NH4 ) 2 SO4 3 % ,pH5 5 ,含水量 65 % ;发酵工艺为培养周期 74h ,两层纱布覆盖 ,3 0℃培养 ,接种量10 %。发酵产物酸性蛋白酶活力达 64 89u/ g(干基 ) ,粗蛋白含量可达 3 4 2 4% ,比所用培养基粗蛋白含量提高 3 6 3 % ,比原料本身粗蛋白含量提高 5 0 3 % ,发酵产物粗纤维含量比原料下降 3 2 %。

through combining fermentation,confirming the best starter that fermenting wheat germ boot to produce protien forage is nigeran,candida and endomycopsis fibuligera (Lindner) delker Compositions of culture medium are 85% wheat germ boot,15%bran,(NH 4) 2SO 43%,pH5 5,content of water 65%,time 74h,30℃,inoculum size 10% Active value of fermented product(acidity proteinase)is 6489u/g(dry basis),content of crude protein is 34 24%,increasing 36 3%that using and 50 3% than raw material Content of product Crude fibre decreases 32% than raw material