The crude glucuronides of the various alcohols were isolated from the urine by extraction with ether or mixtures of ether and ethanol. 各种乙醇的粗葡萄糖醛酸甙从尿中用醚或醚和乙醇混合物提取分离的。
The crude extract was purified by 218 folds. The activity recovery, calculated from urine, was 12 percent. 大分子尿激酶占90%以上,纯化系数为218,活力回收按原尿计为12%。
Test showed that the ratio of crude protein intake and demand increase, the nitrogen and sulfur content in feces and urine will increase. 研究表明:粗蛋白的摄入与需求比增加,奶牛粪尿中氮和硫的含量也会增加。