油茶籽粕固态发酵生产菌体蛋白饲料的研究

以油茶籽粕为原料,选用热带假丝酵母∶枯草芽孢杆菌∶黑曲霉=2∶1∶1为供试菌种,对油茶籽粕进行固态发酵生产菌体蛋白饲料.优化的固态发酵工艺条件为:尿素添加量6％,培养基含水量60％,发酵温度37℃,发酵时间4d.油茶籽粕经发酵后,粗蛋白质质量分数由16.96％上升到35.82％,粗纤维质量分数由20.12％下降到10.96％,营养价值得到提高.

Study on producing bacterial protein feedstuff from camellia seed cake by solid state fermentation

The camellia seed cake was used as raw material to produce mycoprotein by solid state fermentation with a ration Candida tropicalis,Bacillus subtilis,Aspergillus niger of 2∶1∶1 as test microorganism.The optimum condition of solid state fermentation was: the amount of carbamide 6%,moisture content of culture medium at 60%,fermentation temperature at 37℃,and fermentation time for 4 d.After fermentation,the protein content of camellia seed cake was increased from 16.96% to 35.82% and the fiber content was decreased from 20.12% to 10.96%,thus the nutrition value of camellia seed cake was improved.