The isolation of rabbit lacrimal gland epithelial cells was adopted by modified enzyme digesting.
兔泪腺上皮细胞的分离：采用改进酶消化法。
Trypsin was modified by a series of PEG derivatives, then the properties of modified enzymes were evaluated and were compared with native enzyme.
采用各种类型的聚乙二醇衍生物修饰胰蛋白酶，对所修饰酶的酶学性质进行了评价并与原酶比较。
The residue activity of modified enzyme is 32.8% when the affinity to antibody disappear and the stability of modified enzyme is promoted obviously.
得到的修饰酶抗体结合能力消失，保留酶比活力32 .8% ，酶的常温稳定性和热稳定性均有显著提高。
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