Purification and characterization of keratinase from a new Bacillus subtilis strain
نویسندگان
چکیده
منابع مشابه
Isolation, Purification and Characterization of a Thermophilic Alkaline Protease from Bacillus subtilis BP-36
The goal of this research was to isolate and identify the thermostable alkaline protease producing bacteria among several native Iranian microorganisms. At the end of screening program, a Bacillus subtilis BP-36 strain producing thermophilic alkaline protease was isolated from a hot spring in Ardebil province. The target enzyme was purified using a one-step Aqueous two-phase systems (ATPS) prot...
متن کاملCharacterization of the keratinolytic activity of indigenous Bacillus subtilis keratinase
Keratins are water insoluble proteins of our environment. Being extremely resistant to degradation by proteolytic enzymes, keratins are digested mainly by alkali and keratinase enzymes. The aim of present study was to characterize the indigenous keratinase for potentials of keratin-degrading activities. We report the purification and characterization of keratinase from Bacillus subtilis isolate...
متن کاملIsolation and purification of an extracellular protease from a new strain of Bacillus subtilis, viz.NCIM 2711.
A new extracellular protease having a prospective application in the food industry was isolated from Bacillus sUbtilis NCIM 2711 by (NH4)2SO4 precipitation from the cell broth. It was purified using DEAE-Cellulose and CM-Sephadex C-50 ion-exchange chromatography. With casein as a substrate, the proteolytic activity of the purified protease was found to be optimal at pH 7.0 and temperature 55 de...
متن کاملPurification and characterization of DNA polymerase III from Bacillus subtilis.
DNA polymerase III from Bacillus subtilis has been purified about 4,500-fold. Disc gel electrophoresis of the purified fraction reveals a single major protein band which co-migrates with the polymerase activity. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of the polymerase yields a single, 166,000 dalton band. The hydrodynamic properties of the enzyme are ionic strength-dependent....
متن کاملPurification and characterization of two novel halotolerant extracellular proteases from Bacillus subtilis strain FP-133.
Bacillus subtilis strain FP-133, isolated from a fermented fish paste, synthesized two novel halotolerant extracellular proteases (expro-I and expro-II), showing activity and stability at concentrations of 0-20% (w/v) NaCl. Each protease was purified to homogeneity and characterized. The purified expro-I was a non-alkaline serine protease with an optimum pH of 7.5, although most serine protease...
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ژورنال
عنوان ژورنال: Journal of Zhejiang University SCIENCE B
سال: 2008
ISSN: 1673-1581,1862-1783
DOI: 10.1631/jzus.b0820128