Results 21 to 30 of about 1,397,780 (193)

Topotactic crystallization of isolated poly(β-hydroxybutyrate) granules fromAlcaligenes eutrophus [PDF]

FEMS Microbiology Letters, 1992
Transmission electron microscopy (TEM), differential scanning calorimetry (DSC), wide-angle X-ray powder diffractometry (WAXD) and Fourier transform infrared spectroscopy (FTIR) were used to investigate the crystallization behavior of PHB granules from Alcaligenes eutrophus isolated by enzymatic purification.
C. Lauzier, J.-F. Revol, R.H. Marchessault   +2 more
openaire   +1 more source

PRODUCTION OF SOME BIODEGRADABLE POLYMERS BY SOME BACTERIAL ISOLATES [PDF]

Journal of Agricultural Chemistry and Biotechnology, 2008
Several bacterial isolates were isolated from Dakahlia and Damitta Governorates. The isolates were purified, identified and tested for PHB production. The tested isolates were 17 isolates of Azotobacter chroococcum, 8 isolates of Azospirillum lipoferum ...
Sh.M. El-Kadi, Eman Ashour, A.E.I. Selim, M.M. Kassem, M.M.A. El-Sawah   +4 more
doaj   +1 more source

Accumulation of poly-β-hydroxybutyrate byRhodobacter sphaeroideson various carbon and nitrogen substrates [PDF]

FEMS Microbiology Letters, 1998
Combinations of various carbon and nitrogen substrates were used to study poly-β-hydroxybutyrate accumulation and H2 evolution by Rhodobacter sphaeroides strain RV. The cells evolved hydrogen on lactate, pyruvate, or succinate under nitrogen-deprived conditions and on lactate-glutamate and pyruvate-glutamate media.
Emir Khatipov, Masato Miyake, Jun Miyake, Yasuo Asada   +3 more
openaire   +1 more source

Biological conversion of methane to polyhydroxyalkanoates: Current advances, challenges, and perspectives

Environmental Science and Ecotechnology, 2020
Methane emissions and plastic pollution are critical global challenges. The biological conversion of methane to poly-β-hydroxybutyrate (PHB) not only mitigates methane emissions but also provides biodegradable polymer substitutes for petroleum-based ...
Lu-Yao Liu, Guo-Jun Xie, De-Feng Xing, Bing-Feng Liu, Jie Ding, Nan-Qi Ren   +5 more
doaj   +1 more source

Ultrastructural and chemical assessment of poly-β-hydroxybutyric acid in the marine cyanobacteriumTrichodesmium thiebautii [PDF]

FEMS Microbiology Letters, 1992
We report here on the occurrence and quantities of poly-β-hydroxybutyric acid (PHB) in natural populations of the marine cyanobacterium Trichodesmium thiebautii. A diurnal variation in the shape and size of PHB granules and in PHB content was observed.
Pirzada J.A. Siddiqui, Birgitta Bergman, P-O. Björkman, Edward J. Carpenter   +3 more
openaire   +1 more source

Quantitative single-cell detection of poly(β-hydroxybutyrate) accumulation inRhizobium melilotiby flow cytometry [PDF]

FEMS Microbiology Letters, 1995
The ability of flow cytometry to detect intracellular accumulation of poly(β-hydroxybutyrate) (PHB) in individual cells of Rhizobium meliloti was investigated using light scatter parameters. PHB accumulation during stationary phase was shown to form inclusion bodies inside cells which were detected by forward angle light scatter (FALS) parameter.
P Fouchet, S Jan, J Courtois, B Courtois, G Frelat, J.N Barbotin   +5 more
openaire   +1 more source

Production of poly-β-hydroxybutyrate: poly-β-hydroxyvalerate copolymers [PDF]

FEMS Microbiology Letters, 1992
In this paper I shall discuss some of the factors that are important in the large scale production by fermentation of poly-β-hydroxybutyrate: poly-β-hydroxyvalerate (PHB/HV) copolymers. Many of the points discussed are common process features in any scale up procedure.
openaire   +1 more source

Ectopic Expression of the Rhizobium etli amtB Gene Affects the Symbiosome Differentiation Process and Nodule Development

Molecular Plant-Microbe Interactions, 1999
Under conditions of nitrogen limitation, soil bacteria of the genus Rhizobium are able to induce the development of symbiotic nodules on the roots of leguminous plants. During nodule organogenesis, bacteria are released endocytotically inside the invaded
Rosarita Taté, Michele Cermola, Anna Riccio, Maurizio Iaccarino, Mike Merrick, Reneé Favre, Eduardo J. Patriarca   +6 more
doaj   +1 more source

Biosynthesis of poly-β-hydroxybutyrate (PHB) is controlled by CydR (Fnr) in the obligate aerobeAzotobacter vinelandii [PDF]

FEMS Microbiology Letters, 2001
CydR is an Fnr-like protein in the obligatory aerobic nitrogen-fixing bacterium Azotobacter vinelandii. The cydR mutant overproduces the cytochrome bd terminal oxidase. Using two-dimensional polyacrylamide gel electrophoresis, we showed that beta-ketothiolase and acetoacetyl-CoA reductase were also overexpressed in the cydR mutant.
G, Wu, A J, Moir, G, Sawers, S, Hill, R K, Poole   +4 more
openaire   +2 more sources

Poly-β-Hydroxybutyrate (PHB) Production By Amylolytic Micrococcus sp. PG1 Isolated From Soil Polluted Arrowroot Starch Waste

Indonesian Journal of Biotechnology, 2014
Poly-β-hydroxybutyrate (PHB) production from amylolytic Micrococcus sp. PG1. Poly-β-hydroxybutyrate (PHB) is an organic polymer, which synthesized by many bacteria and serves as internal energy. PHB is potential as future bioplastic but its price is very
Sebastian Margino, Erni Martani, Andriessa Prameswara   +2 more
doaj   +1 more source