ISOLATION OF A DEEP-SEA STRAIN THAT PRODUCES ALKALINE PROTEASE AND STUDIES ON ITS FERMENTATION CONDITION
- VernacularTitle:极端微生物产碱性蛋白酶菌株的筛选及发酵条件研究
- Author:
Rui ZHANG
;
Runying ZENG
;
- Publication Type:Journal Article
- Keywords:
Extremophile,Psychrophile,Alkaline protease,Fermentation condition
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
From 38 pieces of deep\|sea samples,a strain,DY\|A,which produces protease was isolated.It can grow at a wide range of pH and salt concentration and best at 10℃.The strain produced maximum protease activity after growth at 10℃,initial pH 10 0 and inoculation volume 0 5%for 48～72h on a shaker by speed of 200r/min.The optimum pH and temperature for the protease activity production are pH 10.0 and 40℃.The enzyme is alkaline protease.Some other properties of the strain and the protease were discussed in detail.
