Morphological Changes in Poly-β-Hydroxybutyrate Granules Associated with Decreased Susceptibility to Enzymatic Hydrolysis
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چکیده
منابع مشابه
Enzymatic hydrolysis of poly-DL-lysine.
The c o n d e n s a t io n o f racemic ly s in e to p o ly -D L ly s in e produces a great number o f d is t in guishable molecules. Following merely statistical reasoning the number o f “pure peptides“ — consisting of only one sort of enantiomers — should be extremely low. The hydrolysis of polyD L -ly s in e by pronase a n d t a k a -d ia s ta s e shows that a content of about 3% “pure“ pol...
متن کاملImmunostimulatory and growth-promoting potential of poly-β-hydroxybutyrate in rainbow trout (Oncorhynchus mykiss) fingerlings culture
In the current study, the effect of dietary supplementation of poly-β-hydroxybutyrate (PHB) on growth performance, digestive enzymes activity, body composition, non-specific immune response and diseases resistance of rainbow trout fingerlings were investigated. Five hundred and fifty-two healthy fingerlings (8.2±1.0 g) were randomly distributed in 12 tanks (150 L) at a density of 46 fish/ tank ...
متن کاملEffect of polymyxin B, tyrocidine, gramicidin D, and other antibiotics on the enzymatic hydrolysis of poly-beta-hydroxybutyrate.
Merrick, J. M. (State University of New York, Buffalo). Effect of polymyxin B, tyrocydine, gramicidin D, and other antibiotics on the enzymatic hydrolysis of poly-beta-hydroxybutyrate. J. Bacteriol. 90:965-969. 1965.-Previous studies have demonstrated that native poly-beta-hydroxybutyrate (PHB) granules isolated from Bacillus megaterium are surrounded by a discrete membranelike structure. Morph...
متن کاملApplication of the Taguchi Design for Production of Poly(β-hydroxybutyrate) by Ralstonia eutropha
The Taguchi design of experiments was used to test the relative importance of medium components and environmental factors on poly(β-hydroxybutyrate)(PHB) production by Ralstonia eutropha. The optimum condition was obtained as: fructose concentration, 15 g/L; C/N ratio, 7.4; agitation speed 200 rpm; culture time, 40 h; temperature, 25 ° C; seed age, 15 h. At optimu...
متن کاملIsolation and Optimization of Poly Β Hydroxybutyrate Producing Cyanobacterial Strains
Cyanobacteria have many unexploited potential for natural products with a huge variability in structure and biological activity. Under stress conditions they are reported to produce biopolymers like poly-β-hydroxybutyrate (PHB), which can be produced intracellularly.Cyanobacteria are capable of synthesizing small amount of poly-β-hydroxybutyrate (PHB) under nitrogen and phosphorous starvation c...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1965
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.89.1.234-239.1965