Results 11 to 20 of about 4,310 (179)

Chemical conversion of a solid body of the composite gypsum/polyhydroxybutyrate in hydroxyapatite/polyhydroxybutyrate [PDF]

Cerâmica, 2019
The transformation of the gypsum into hydroxyapatite allows added value to this raw material, because the ceramic obtained has a high commercial value in relation to gypsum, while the polymer adds biocompatibility and bioactivity properties to the ...
A. A. Barbosa, S. A. Júnior, A. C. S. Dantas, A. V. Ferraz   +3 more
doaj   +3 more sources

Polyhydroxybutyrate biosynthesis in Caulobacter crescentus: molecular characterization of the polyhydroxybutyrate synthase [PDF]

Microbiology, 2001
Caulobacter crescentus was investigated with respect to polyhydroxybutyrate (PHB) biosynthesis. Polyhydroxyalkanoate (PHA) accumulation contributing to approximately 18% of the cell dry weight was obtained in the presence of glucose. Gas chromatography-mass spectrometry and gel permeation chromatography of the purified PHA showed that this polyester ...
Qi, QS, Rehm, BHA
openaire   +3 more sources

Polyhydroxybutyrate As A Biopolymer

International Journal of Advanced Research in Science, Communication and Technology, 2022
This project is about the use of biopolymer (PHB) as an alternative form in place of non-biodegradable plastic, many types of research have been done on this polymer which shows it sharesa similar application as that of conventional plastic and also are biodegradable and biocompatible.
null Priyanka Kumari, null Dr. Madhuri Girdhar   +1 more
openaire   +1 more source

Determining paracrystallinity in mixed-tacticity polyhydroxybutyrates [PDF]

Journal of Applied Crystallography, 2021
Recently, the authors reported on the development of crystallinity in mixed-tacticity polyhydroxybutyrates. Comparable values reported in the literature vary depending on the manner of determination, the discrepancies being partially attributable to scattering from paracrystalline portions of the material.
Van Opdenbosch, Daniel, Haslböck, Maria, Zollfrank, Cordt, Haslböck, Maria; 1Biogenic Polymers, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, D-94315Straubing, Germany, Zollfrank, Cordt; 1Biogenic Polymers, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, D-94315Straubing, Germany   +4 more
openaire   +3 more sources

Physicochemical characterization of biodegradable polymer polyhydroxybutyrate from halophilic bacterium local strain Halomonas elongata [PDF]

Global Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: Petroleum-based plastics produce tremendous amounts of plastic waste every year, which contributes to environmental problems. Biological polymers, such as polyhydroxybutyrate, have caught attention as an ecofriendly substitute ...
W.O.S. Rizki, E. Ratnaningsih, D.G.T. Andini, S. Komariah, A.T. Simbara, R. Hertadi   +5 more
doaj   +1 more source

Processing Biodegradable Blends of Hemicellulose with Polyhydroxybutyrate and Poly (Lactic Acid) [PDF]

Materials Research, 2023
The bottleneck of hemicellulose as a bio-based material is its processability and property drawbacks (softening and hydrophilicity). Thus, mixing other biopolymers can be an alternative.
Ívia Maria Lourenço Mendes, Michaella Socorro Bruce Fialho, Rosineide Miranda Leão, Edgar A. Silveira, Sandra Maria da Luz   +4 more
doaj   +1 more source

Production of polyhydroxybutyrate in sugarcane

Plant Biotechnology Journal, 2006
SummaryWe report here the production of the bacterial polyester, polyhydroxybutyrate (PHB), in the crop species sugarcane (Saccharum spp. hybrids). The PHB biosynthesis enzymes of Ralstonia eutropha [β‐ketothiolase (PHAA), acetoacetyl‐reductase (PHAB) and PHB synthase (PHAC)] were expressed in the cytosol or targeted to mitochondria or plastids.
Petrasovits, L. A., Purnell, M. P., Nielsen, L. K., Brumbley, S. M.   +3 more
openaire   +5 more sources

Overexpression of Bacterial Beta-Ketothiolase Improves Flax (Linum usitatissimum L.) Retting and Changes the Fibre Properties

Metabolites, 2023
Beta-ketothiolases are involved in the beta-oxidation of fatty acids and the metabolism of hormones, benzenoids, and hydroxybutyrate. The expression of bacterial beta-ketothiolase in flax (Linum usitatissimum L.) results in an increase in endogenous beta-
Justyna Mierziak, Wioleta Wojtasik, Anna Kulma, Magdalena Żuk, Magdalena Grajzer, Aleksandra Boba, Lucyna Dymińska, Jerzy Hanuza, Jakub Szperlik, Jan Szopa   +9 more
doaj   +1 more source

Bioprocessing of Damaged Wheat Grain Into PHB Using <i>Lactobacillus</i> Fermentation Following Optimized Acid Hydrolysis. [PDF]

Food Sci Nutr
336.66 mg/g RS from DWG hydrolysis at 45 min with 6% HCl. 1.85 g/L PHB produced by FH12 at 30°C, 6%, after 96 h. NMR and FTIR confirmed the authentic chemical structure of PHB. PHB showed thermal stability from 270°C to 340°C with max loss at 350°C. PHB showed UV‐blocking and crystalline structure for packaging use.
Boorboormoradi Z, Eyvazzade O, Rashidi L, Nateghi L.   +3 more
europepmc   +2 more sources

Growth of Pseudomonas fluorescens on Cassava Starch hydrolysate for Polyhydroxybutyrate production

Journal of Applied Sciences and Environmental Management, 2011
The potential of local strains of microorganism (Pseudomonas fluorescens) in polyhydroxbutyrate production was investigated in this study. This was with a view to establishing the capabilities of local strains of microorganisms on utilizing renewable and
MO Aremu, OA Olu-Arotiowa, SK Layokun, BO Solomon   +3 more
doaj   +1 more source