poros 中文意思是什麼
poros
解釋
波羅什-
To reveal the reason of above phenomenon, we purified the eluant by poros 20hq ion - exchange chromatography and got five proteins. one of them ( hq - s ) was proved to can be proteolytic
為弄清這一現象的產生原因，將嗜硫色譜洗脫峰通過poros20hq離子交換色譜進一步分離，獲得5個分子量非常接近的組分。 -
3. 2. 1. 4 ) which was prepared by precipitation of the water extract of the culture of aspergillus niger with ammonium sulfate and desalted by sephadex g - 25, and was further fractionated by two steps of deae - toyopearl 650m and one step of poros 20pi chromatography. the other was a p - glucosidase ( ec. 3. 2. 1. 21 ) which was prepared by the above g - 25 fractions and was further fractionated by two steps of deae - toyopearl 650m chromatography. the specific activity of the endoglucanase with sodium carboxymethyl cellulose was estimated to be 433. 38 hj / mg
-葡萄糖苷酶對水楊素的比活力為597 . 12iu mg ，並對其專一，不能水解棉花和羧甲基纖維素鈉；分子量為117 . 5kda ，加dtt後分子量不變；該組分最適ph和溫度分別為4 . 5和70 ，在ph5 . 0 、 50下對水楊素鈉的米氏常數km為3 . 73mg ml ，最大反應速度vm為0 . 088mg葡萄糖（ ml ? min ） ；與文獻中從黑麴黴中分離的-葡萄糖苷酶比較后發現，該組分是一個新的-葡萄糖苷酶。
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