Polymeric Beta-Hydroxyalkanoates from Environmental Samples and Bacillus megaterium
نویسندگان
چکیده
منابع مشابه
Polymeric sorbents for removal of Cr(VI) from environmental samples*
Chromium (Cr) is an important raw material in some chemical industries including paint, pigments, textiles, leather tanning, steel fabrication, electroplating, cement preservation, and canning industries. Once in the environment, Cr exists in various oxidation states depending on pH and concentration. Trivalent [Cr(III)] and hexavalent [Cr(VI)] forms are the most common with Cr(VI) being the mo...
متن کاملSalt-inducible bionylon polymer from Bacillus megaterium.
Poly-gamma-glutamate (PGA) is a chiral polyamide material that possesses a nylon-like backbone, a bionylon polymer. We examined the PGA productivity of Bacillus megaterium and found NaCl-responsive PGA production in the bacterium. In the system of B. megaterium, salt would be significant in controlling the yield, molecular size, and stereochemistry of bionylon.
متن کاملPlasmolysis in Bacillus Megaterium.
Weibull, Claes (Central Bacteriological Laboratory of Stockholm City, Stockholm, Sweden). Plasmolysis in Bacillus megaterium. J. Bacteriol. 89:1151-1154. 1965.-Sucrose solutions stronger than 1 m caused plasmolysis in Bacillus megaterium strain M, whereas concentrated NaCl and KNO(3) solutions were ineffective. In plasmolyzed cells, mesosome bodies were found in pockets between the cytoplasmic ...
متن کاملBiochemical approaches of increasing thermostability of beta-amylase from Bacillus megaterium B6.
Studies on the irreversible thermoinactivation of beta-amylase from Bacillus megaterium B6 exposed to 60 degrees C revealed that the deactivation mechanism probably results from the oxidation of thiols present at the active site of the enzyme. Several attempts were made to increase its thermostability, which indicated that Mn2+ played a key role in determining thermostability and partially reac...
متن کاملPurification and properties of penicillin amidase from Bacillus megaterium.
A penicillin amidase, obtained from the exogenous medium of a Bacillus megaterium culture, was purified approximately 96-fold by means of two cycles of adsorption on, and elution from, Celite, followed by a further fractionation on carboxymethylcellulose. On the basis of sedimentation centrifugation analysis, the final preparation was deemed to be homogeneous with an apparent molecular weight o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1983
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.45.1.71-78.1983