Growth of Bacillus stearothermophilus on glycerol in chemostat culture: expression of an unusual phenotype
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چکیده
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Culture Conditions for Production of Thermostable Amylase by Bacillus stearothermophilus.
Bacillus stearothermophilus grew better on complex and semisynthetic medium than on synthetic medium supplemented with amino acids. Amylase production on the complex medium containing beef extract or corn steep liquor was higher than on semisynthetic medium containing peptone (0.4%). The synthetic medium, however, did not provide a good yield of extracellular amylase. Among the carbohydrates wh...
متن کاملCloning and Expression of Thermostable alpha-Amylase Gene from Bacillus stearothermophilus in Bacillus stearothermophilus and Bacillus subtilis.
The structural gene for a thermostable alpha-amylase from Bacillus stearothermophilus was cloned in plasmids pTB90 and pTB53. It was expressed in both B. stearothermophilus and Bacillus subtilis. B. stearothermophilus carrying the recombinant plasmid produced about fivefold more alpha-amylase (20.9 U/mg of dry cells) than did the wild-type strain of B. stearothermophilus. Some properties of the...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1990
ISSN: 0022-1287
DOI: 10.1099/00221287-136-7-1381