The liquid obtained in this way was salt-outed with 35% saturated (NR_4)_2SO_4 solution, thus, about 90% of the cellulase activity was conserved and some of the other proteins were removed.

• 由此得到的酶液,用饱和度为35%25的硫酸铵溶液进行盐析,可以去除部分杂蛋白,并且酶活回收率在90%25左右。