Results 261 to 270 of about 70,545 (301)

Starch-Filled PHB and PHB/HV Copolymer

Polymer International, 1996
The structure and mechanical properties of melt-pressed sheets of bacterially produced poly-3-hydroxybutyrate (PHB) and poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHB/HV) filled with various amounts of particulate maize starch granules have been investigated.
I. Koller, A. J. Owen
openaire   +1 more source

Polyhydroxybutyrate (PHB) biodegradation using bacterial strains with demonstrated and predicted PHB depolymerase activity

Applied Microbiology and Biotechnology, 2018
The biodegradation of polyhydroxybutyrate (PHB) has been broadly investigated, but studies typically focus on a single strain or enzyme and little attention has been paid to comparing the interaction of different PHB depolymerase (PhaZ)-producing strains with this biopolymer.
D. I. Martínez-Tobón, Maryam Gul, A. Elias, Dominic Sauvageau   +3 more
semanticscholar   +3 more sources

PHB recovery by hypochlorite digestion of non-PHB biomass

Biotechnology Techniques, 1989
Hypochlorite digestion of bacterial biomass from intracellular poly-β-hydroxybutyrate (PHB) has not been used on a large scale since it has been reported to severely degrade PHB. In this study, to minimize degradation, the initial biomass concentration, digestion time and pH of the hypochlorite solution were optimized.
E. Berger, B. A. Ramsay, J. A. Ramsay, C. Chavarie, G. Braunegg   +4 more
openaire   +1 more source

Results of biomedical investigations of PHB and PHB/PHV fibers

Biochemical Engineering Journal, 2003
Abstract The paper presents the results of biomedical investigations of sutures made of polyhydroxyalkanoates (PHAs) of two types (poly-3-hydroxybutyrate (PHB) and poly-3-hydroxybutyrate-co-poly-3-hydroxyvalerate (PHB/PHV)), synthesized by the bacteria Ralstonia eutropha B 5786 in the experiment on test animals in vivo, in comparison with silk and ...
Tatiana Volova, Ekaterina Shishatskaya, Viktor Sevastianov, Sergei Efremov, Olga Mogilnaya   +4 more
openaire   +1 more source

Sustainable composites from poly(3-hydroxybutyrate) (PHB) bioplastic and agave natural fibre

, 2020
A sustainable green composite based on poly(3-hydroxybutyrate) (PHB) and agave fibre was produced. The synergy between PHB bioplastic and agave natural fibre was investigated in the presence of an organic peroxide through one step reactive extrusion ...
Megan K. M. Smith, D. M. Paleri, Mohamed A. Abdelwahab, D. Mielewski, M. Misra, A. Mohanty   +5 more
semanticscholar   +1 more source

PHB/PZT composite

2005 12th International Symposium on Electrets, 2006
Flexible standing films of piezoelectric composite made of lead zirconate titanate (PZT) ceramic powder and poly(3-hydroxybutyrate) (PHB) in powder form were obtained by mixing both polymers mechanically and pressed at 180 /spl deg/C. The piezoelectric coefficient d/sub 33/ were investigated as function of PZT content, poling temperature and electric ...
J.A. Malmonge, L.H. Okajima, L.F. Malmonge, W.K. Sakamoto, S.M. Malmonge   +4 more
openaire   +1 more source

Crystallization and melting behaviour of PHB and PHB/HV copolymer

Polymer, 1992
Abstract The crystallization and melting behaviour of bacterially produced poly(3-hydroxybutyrate) homopolymer and poly(3-hydroxybutyrate/3-hydroxyvalerate) copolymer were investigated by means of optical microscopy, wide-angle X-ray scattering and calorimetric measurements.
A.J. Owen, J. Heinzel, Ž. Škrbić, V. Divjaković   +3 more
openaire   +1 more source

Hydrolysis of native poly(hydroxybutyrate) granules (PHB), crystalline PHB, and artificial amorphous PHB granules by intracellular and extracellular depolymerases

International Journal of Biological Macromolecules, 1999
Native poly(hydroxybutyrate) (PHB) granules, purified PHB and artificial amorphous PHB granules were examined as putative substrates for hydrolysis by the intracellular depolymerase system of Rhodospirillum rubrum and the extracellular depolymerase of Pseudomonas lemoignei. The R.
J M, Merrick, R, Steger, D, Dombroski
openaire   +2 more sources

Improvement of polyhydroxybutyrate (PHB) plate-based screening method for PHB degrading bacteria using cell-grown amorphous PHB and recovered by sodium dodecyl sulfate (SDS)

International Journal of Biological Macromolecules, 2021
Poly(3-hydroxybutyrate) (PHB) is a biobased and biodegradable plastic. Considering the environmental issues of petroleum-based plastics, PHB is promising as it can be degraded in a relatively short time by bacteria to water and carbon dioxide. Substantial efforts have been made to identify PHB-degrading bacteria.
Sol Lee, Park, Jang Yeon, Cho, Tae-Rim, Choi, Hun-Suk, Song, Shashi Kant, Bhatia, Ranjit, Gurav, See-Hyoung, Park, Kyungmoon, Park, Jeong Chan, Joo, Sung Yeon, Hwang, Yung-Hun, Yang   +10 more
openaire   +2 more sources