Results 151 to 160 of about 998 (188)

Fabrication and Characterisation of Polymer and Composite Scaffolds Based on Polyhydroxybutyrate and Polyhydroxybutyrate-Co-Hydroxyvalerate

Key Engineering Materials, 2007
This paper reports the fabrication and characterization of three-dimensional, highly porous polyhydroxybutyrate (PHB), polyhydroxybutyrate-co-valerate (PHBV) and composite scaffolds made by the emulsion freezing / freezing-drying technique. Freeze-drying of the polymer/solvent/ water phase emulsions produced hard and tough scaffolds with interconnected
Wang, M, Sultana, N
openaire   +2 more sources

Polyhydroxybutyrate synthesis in transgenic flax

Journal of Biotechnology, 2004
Flax (Linum usitatissimum L.) is an annual plant species widely cultivated in temperate climates for bast fibres and linseed oil. Apart from traditional textile use, the fibres are fast becoming an integral part of new composite materials utilized in automobile and constructive industry.
Magdalena, Wróbel, Jacek, Zebrowski, Jan, Szopa   +2 more
openaire   +2 more sources

Enhancement of fructosyltransferase stability by immobilization on polyhydroxybutyrate and glutaraldehyde‐activated polyhydroxybutyrate for fructooligosaccharides production

Journal of Chemical Technology & Biotechnology, 2022
AbstractBACKGROUNDFructosyltransferase (FTase) enzyme is an important biocatalyst for fructooligossaccaride (FOS) production, but it has low stability in soluble form. The aim of this work was to analyze the stability and kinetics of an fructosyltransferase (FTase E.C.2.4.1.9) from Aspergillus oryzae IPT‐301 immobilized on polyhydroxybutyrate (PHB) and
Isabella Medeiros Araújo, Pedro Capalbo Becalette, Elda Sabino da Silva, Giancarlo de Souza Dias, Michelle da Cunha Abreu Xavier, Alex Fernando de Almeida, Alfredo Eduardo Maiorano, Sergio Andres Villalba Morales, Rafael Firmani Perna   +8 more
openaire   +1 more source

Polyhydroxybutyrate in Azospirillum brasilense

2015
Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate produced by several bacteria as carbon storage and reductive equivalents sink. The production of PHB has been reported for several plant-associated bacteria, and especially in Azospirillum brasilense, the production of PHB has been associated as a factor for stress endurance.
Marcelo Müller-Santos, Emanuel Maltempi de Souza, Fabio de Oliveira Pedrosa, Leda Satie Chubatsu   +3 more
openaire   +1 more source

κ-Carrageenan Enhances the Biomineralization and Osteogenic Differentiation of Electrospun Polyhydroxybutyrate and Polyhydroxybutyrate Valerate Fibers

Biomacromolecules, 2017
Novel electrospun materials for bone tissue engineering were obtained by blending biodegradable polyhydroxybutyrate (PHB) or polyhydroxybutyrate valerate (PHBV) with the anionic sulfated polysaccharide κ-carrageenan (κ-CG) in varying ratios. In both systems, the two components phase separated as shown by FTIR, DSC and TGA.
Nowsheen Goonoo, Behnam Khanbabaee, Marc Steuber, Archana Bhaw-Luximon, Ulrich Jonas, Ullrich Pietsch, Dhanjay Jhurry, Holger Schönherr   +7 more
openaire   +2 more sources

Polyhydroxybutyrate by Streptomyces sp.: Production and characterization

International Journal of Biological Macromolecules, 2017
A total number of 20 actinomycetes isolates were isolated from soil sediments obtained from Semmancheri coastal areas of Bay of Bengal, India and they were qualitatively screened for the production of polyhydroxybutyrate (PHB) on a medium containing Sudan black stain.
Sivakumar, Krishnan, Gandhi Shree, Chinnadurai, Palani, Perumal   +2 more
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Butyrate as preferred substrate for polyhydroxybutyrate production

Bioresource Technology, 2013
In this study, the suitability of butyrate as substrate for polyhydroxyalkanoate (PHA) production by microbial enrichment cultures was assessed. Two sequencing batch reactors were operated under feast-famine conditions: one fed with butyrate, and another with mixed acetate and butyrate.
Leonie, Marang, Yang, Jiang, Mark C M, van Loosdrecht, Robbert, Kleerebezem   +3 more
openaire   +2 more sources

On Morphology of Polyhydroxybutyrate

2013
It is in process installed, that to growth of polarity of dissolvent there is a perfection of a crystal structure and decrease of a share of amorphous phase polyhydroxybutyrate (PHB). It is shown, that a share of a defective crystal phase in films PHB directly proportional to magnitude of cohesive energy of dissolvent.
openaire   +1 more source

Thermophysical and Mechanical Properties of β-Tricalcium Phosphate Reinforced Polyhydroxybutyrate and Polyhydroxybutyrate-Co-Hydroxyvalerate Composites

Key Engineering Materials, 2007
Two series of bioactive and biodegradable composite materials consisting of particulate β-tricalcium phosphate (β-TCP) and polyhydroxybutyrate (PHB) and its copolymer polyhydroxybutyrate-co-hydroxyvalerate (PHBV) were produced and investigated for bone tissue repair.
Wang, M, Liu, Y
openaire   +3 more sources

Telechelic Polyhydroxyalkanoates/Polyhydroxybutyrates (PHAs/PHBs)

, 2017
Poly(3-hydroxyalkanoate)s, PHAs, are natural polyesters collected as intracellular granules as a result of a metabolic stress upon unbalanced growth, owing to a limited supply of a necessary nutrient and to the presence of an excess of a carbon source [1,2,3,4,5,6,7-8]. PHAs have material properties ranging from rigid and highly crystalline to elastic,
Kowalczuk, Marek, Alli, A., Hazer, B., Adamus, Grazyna   +3 more
exaly   +5 more sources