Results 271 to 280 of about 70,545 (301)

Controlling microbial PHB synthesis via CRISPRi

Applied Microbiology and Biotechnology, 2017
Microbial polyhydroxyalkanoates (PHA) are a family of biopolyesters with properties similar to petroleum plastics such as polyethylene (PE) or polypropylene (PP). Polyhydroxybutyrate (PHB) is the most common PHA known so far. Clustered regularly interspaced short palindromic repeats interference (CRISPRi), a technology recently developed to control ...
Dan Li, Li Lv, Jin‐chun Chen, Guo-Qiang Chen   +3 more
semanticscholar   +3 more sources

Biodegradability of Thermally Aged PHB, PHB-V, and PCL in Soil Compostage

Journal of Polymers and the Environment, 2004
The biodegradability of poly-β-hydroxybutyrate (PHB), poly-β-hydroxybutyrate-co-valerate (PHB-V) and poly-ɛ-caprolactone (PCL) were examined following thermal aging in an oven for 192, 425 and 600 h. Different temperatures, 100, 120 and 140°C for PHB and PHB-V and 30, 40 and 50oC for PCL were used to assess the influence of this parameter on ...
Derval dos Santos Rosa, Maria Regina Calil, Cristina das Gra�as Fassina Guedes, T�lio C�sar Rodrigues   +3 more
openaire   +1 more source

Biodegradable PHB-Rubber Copolymer Toughened PLA Green Composites with Ultrahigh Extensibility

ACS Sustainable Chemistry and Engineering, 2018
The sustainable biopolymer, poly(lactide) (PLA), has been intensely researched over the past decades because of its excellent biodegradability, renewability, and sustainability.
J. Yeo, J. K. Muiruri, B. H. Tan, W. Thitsartarn, Junhua Kong, Xikui Zhang, Zibiao Li, Chaobin He   +7 more
semanticscholar   +1 more source

A convenient route to PHB macromonomers via anionically controlled moderate‐temperature degradation of PHB

Journal of Polymer Science Part A: Polymer Chemistry, 2010
AbstractThe degradation of poly(3‐hydroxybutyrate)s in homo‐ and heterogeneous mixtures with selected salts of organic and mineral acids was investigated. Nonvolatile degradation products, of processes conducted at moderate temperatures (150–170 °C), were analyzed using 1H NMR.
M. Kawalec, M. Sobota, SCANDOLA, MARIASTELLA, M. Kowalczuk, P. Kurcok   +4 more
openaire   +2 more sources

New Dual Functional PHB-Grafted Lignin Copolymer: Synthesis, Mechanical Properties, and Biocompatibility Studies.

ACS Applied Bio Materials, 2018
Poly(3-hydroxybutyrate) (PHB) is a sustainable and biodegradable biopolymer from bacteria, but its brittle nature greatly limits its applications. In this study, we developed a lignin-PHB copolymer to enhance the mechanical properties of PHB.
D. Kai, Kangyi Zhang, S. S. Liow, X. Loh
semanticscholar   +1 more source

Development of PLA‐PHB‐based biodegradable active packaging and its application to salmon

Packaging technology & science, 2018
In this study, poly (lactic acid)‐poly (hydroxybutyrate) (PLA‐PHB) based films containing bioactive elements were developed and characterized. Seven formulations containing different contents of plasticizers (mono‐caprylin glycerate (GMC) or glycerol ...
Yichao Ma, Li Li, Yifen Wang
semanticscholar   +1 more source

Spherulitic Growth Rate of Blends of Polyhydroxybutyrate (PHB) with Oligomeric Atactic PHB-diol

Journal of Macromolecular Science, Part B, 2011
Spherulitic growth rates of blends of polyhydroxybutyrate (PHB) with oligomers of atactic R,S-PHB-OH (Mn = 610, 910, and 2670 g/mol), as well as atactic R,S-PHB (Mn = 30 000 g/mol), were investigated by polarized light optical microscopy in the range from 50°C to 110°C.
S. H. El-Taweel, B. Stoll
openaire   +1 more source

The “PHB Depolymerase Inhibitor” of Paucimonas lemoignei Is a PHB Depolymerase

Biomacromolecules, 2002
A approximately 35 kDa protein that has been described to be secreted by Paucimonas lemoignei during growth on succinate and to inhibit hydrolysis of denatured (crystalline) poly(3-hydroxybutyrate) (dPHB) by extracellular PHB depolymerases of P. lemoignei (PHB depolymerase inhibitor (PDI)) was purified and characterized.
Simone, Reinhardt, René, Handrick, Dieter, Jendrossek   +2 more
openaire   +2 more sources

Study on Synthesis of PHB by Moderate Halophile and Aqueous Extraction of PHB

Applied Mechanics and Materials, 2013
PHB (Poly-β-hydroxybutyrate) has been widely in the areas of industrial packaging, pharmacy and agriculture. Currently, its production cost, especially in extraction and purification are high. A moderate halophilic bacterium was used for PHB synthesis and an aqueous extraction method based on osmotic downshock was investigated in this paper to further ...
Qing Chen, Ling Hua Zhang
openaire   +1 more source

Pharmaziehistorische Bibliographie PhB

1993
Die Digitalisierung wurde ermöglicht durch die freundliche Genehmigung der Avoxa - Mediengruppe deutscher Apotheker GmbH.
openaire   +1 more source