Production of Thermostable Alkaline Proteases by Thermophilic Streptomyces
نویسندگان
چکیده
منابع مشابه
Properties of two homologous alkaline proteases from Streptomyces rectus.
Some physicochemical properties of two thermostable proteases from Streptomyces rectus are described. The enzymes were judged to be identical with respect to molecular weight, inactivation with serine protease inhibitors, and in primary structure by peptide analysis. Amino acid analysis indicated the enzymes had identical compositions except for their amide content. The molecular weights of the...
متن کاملkinetics of alkaline protease production by streptomyces griseoflavus ptcc1130
background and objectives: proteases are a group of enzymes that catalyze the degradation of proteins resulting in the pro- duction of their amino acid constituents. they are the most important group of industrial enzymes which account for about 60% of total enzymes in the market and produced mainly by microorganisms. the attempts were made to study the kinetic parameters of protease produced b...
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Extra cellular alkaline protease producing species is an isolate from soil which was characterized and identified as Streptomyces pulvereceus MTCC 8374. Studies on submerged fermentation revealed that maximum level of enzyme production was during early stationary phase. Optimum pH, inoculum and temperature were 9.0, 3 percent and 33 C respectively. Among carbon sources 0.3 peccent starch gave a...
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Isolation and identification of thermophilic Bacillus sp was carried out from a soil sample. The cells were cultivated in a medium containing soluble starch as sole carbon source. The addition of calcium (10 mM) or peptone (1%) and yeast extract (0.5%) to the medium shortened the lag period and improved the growth and amylase synthesis. The optimum temperature for amylase production was detecte...
متن کاملKinetics of alkaline protease production by Streptomyces griseoflavus PTCC1130
BACKGROUND AND OBJECTIVES Proteases are a group of enzymes that catalyze the degradation of proteins resulting in the production of their amino acid constituents. They are the most important group of industrial enzymes which account for about 60% of total enzymes in the market and produced mainly by microorganisms. The attempts were made to study the kinetic parameters of protease produced by S...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1969
ISSN: 0003-6919
DOI: 10.1128/am.17.3.366-371.1969