啤酒麦糟制备蛋白饲料过程中蛋白质的转化*

啤酒麦糟经湿磨、稀酸预水解和酶水解后,有37%的麦槽蛋白溶解在水解糖液中。糖液供培养酵母用,溶解在其中的麦糟蛋白质的40%-50%能被酵母利用转化成酵母蛋白。产酶用的纤维渣中保留了20%的麦增蛋白。在产酶过程中菌丝体可溶解并利用其中30%的麦糟蛋白质合成纤维素酶。63%的麦楷蛋白质留在滤渣、预水解渣、酶解渣和产酶渣中, 干燥后与酵母混合制成蛋白饲料。麦糟蛋白质在所选用的工艺条件下, 基本不受损失。

Conversion of Protein In the Protein of High Protein Feeds from Barley Gain Residue.

In the Process of feedstuff Production, barley grain residue was ground, prehydrolysed and enzymatically hydrolysed. Some 37% of barley Protein could be dissolved in sugar solution used for yeast fermentation which could turn more than 40% of the dissolved protein into yeast protein. Cellulosic residue for cellulase production contained 20% of barley protein. of which 30% was dissolved and utilized by fungous mycella to produce cellulase. About 63% of barley protein was remaiend in the residues of filtration, prehydrolysis, cellulase production and enzymatic hydrolysis, and mixed with yeast to make protein feedstuff after dry. No lose of barley protein was observed in the whole process.