Taxonomic characteristics of a thermophilic acidophilic strain of Bacillus producing thermophilic acidophilic amylase and thermostable xylanase.
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چکیده
منابع مشابه
Characteristics of a Novel Highly Thermostable and Extremely Thermophilic Alkalitolerant Amylase from Hyperthermophilic Bacillus Strain HUTBS71
Problem statement: This study reported the purification and characterization of a novel highly thermostable alkaline amylase from a newly isolated Bacillus strain HUTBS71. Approach: The enzyme was purified using ammonium sulfate precipitation, ion exchange and gel filtration chromatography. Results: Maximum amylase activity (72 U mL) was obtained at 100°C after 10 min of incubation. The enzyme ...
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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...
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A thermoacidophilic micro-organism, isolated from volcanic hot springs near Naples, was cultivated in vitro, and examined by electron microscopy in sections and after negative staining. The cells were almost spherical, with a diameter of about 0.7 to 1.0 mum. Their morphology was very primitive: the protoplasm was composed only of ground cytoplasm, ribosomes, and randomly distributed DNA strand...
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The ability to hydroxylate steroids is not common amongst bacilli, but a thermophilic strain hydroxylates progesterone to form both the 6 a and 60 derivatives. The hydroxylation products formed at 55°C were extracted, purified by TLC and HPLC and identified by 'HNMR. The hydroxylation was inhibited by ketoconazole and gave a reduced CO spectrum peak at 449 nm and a progesterone binding spectrum...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1983
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.47.965