混菌固态发酵啤酒糟生产蛋白饲料的研究

对啤酒糟资源的更深层开发利用,提高其饲喂效价,是缓解我国蛋白质资源短缺的有效途径之一。通过单因素试验和正交优化试验,确定混菌种发酵啤酒糟生产高蛋白饲料的最佳发酵条件啤酒糟与豆粕配比为7:3,接种量为20%,硫酸铵添加量为0.5%,尿素添加量为0.5%,发酵时间为1d。在此条件下,真蛋白达到39.13%。

Research on production of protein feedstuff from brewer's spent grain by mixed culture solid-state fermentation

Brewer's spent grain deep fermentation can improve its feeding effectiveness,and it is also an effective way to solve the problem of shortage of protein source.The fermentation conditions of producing high quality protein feedstuff from brewer's spent grain were studied by a serial of single factors and orthogonal design tests.Results showed that the optimal conditions were:the proportion of brewer's grains and soybean meal was 7:3,inoculum amount was 20 %,the addition amount of ammonium sulfate was 0.5%,th...