粗提取物 meaning in Chinese

crude-extract

6 - phosphogluconate dehydrogenase ( 6 - pgadase , ec 1 . 1 . 1 . 44 ) was isolated by homogenate , ammunium sulfate fractionation , deae - sepharose chromatography , blue - sepharose affinity chromatography and gel filtration with sephadex g - 200 from bacillus subtilis , and some properties of the enzyme had been studied . a 113 . 8 - fold purification was obtained with a 8 . 2 % yield . the purified enzyme moved as a single electrophoretic band in page
将枯草芽孢杆菌超声波破壁后的粗提取物进行分段盐析、 deae - sepharose阴离子交换柱层析， blue - sepharosecl - 6b特异结合柱层析和sephadexg - 200凝胶过滤等纯化步骤，得到聚丙烯酰胺凝胶电泳为单一蛋白区带，比活为1 . 46u mg的酶制剂。