Search for dissertations about: "PHB"

Showing result 1 - 5 of 18 swedish dissertations containing the word PHB.

  2. 1. Application of Synthetic Biology for Biopolymer Production using Saccharomyces cerevisiae

    Author : Alejandro Muñoz De Las Heras; Teknisk mikrobiologi; []
    Keywords : Saccharomyce cerevisiae; Xylose; Poly-3-d-hydroxybutyrate PHB ; NADH; NADPH; Acetyl-CoA; Metabolic engineering;

    Abstract : Plastics are versatile, cheap and durable materials that are omnipresent in modern society. Since most of them are derived from crude oil and are not biodegradable, their production leads to the depletion of fossil fuels and the accumulation of enormous amounts of plastic waste that pollutes ecosystems worldwide. READ MORE

  4. 2. Exploring Yeast as a Cell Factory for the Production of Carboxylic Acids and Derivatives

    Author : Diogo Portugal-Nunes; Teknisk mikrobiologi; []
    Keywords : Saccharomyces cerevisiae; Poly-3-D-hydroxybutyrate PHB ; Carboxylic acids; Alpha-ketoglutarate AKG ; Xylose assimilation; Weimberg pathway;

    Abstract : Baker’s yeast, Saccharomyces cerevisiae, is a promising cell factory for the sustainable utilization of renewable resources for the formation of products with commercial value. Among these, poly-3-D-hydroxybutyrate (PHB) is an extensively studied biopolymer naturally accumulated in some bacteria and archaea species through the formation of carbon granules. READ MORE

  5. 3. Poly (3-hydroxybutyrate) from a moderate halophile: production and modification for new applications

    Author : Marlene Munoz; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biopolymers; polyhydroxyalkanoates; polyhydroxybutyrate; moderate halophile; Halomonas boliviensis; fermentation; recovery; thermally induced phase separation; scaffolds; covalent modification; hydrophobic ion pairing; polyethylenemine; lysozyme.;

    Abstract : Polyhydroxybutyrate (PHB) is a homopolymer belonging to the family of biopolyesters, polyhydroxyalkanoates (PHA) produced by different bacteria and archaea as intracellular granules often under conditions of metabolic stress due to a limited supply of essential nutrients. The properties of the PHAs are similar to those of polyethylene and polypropylene and can hence replace these fossil based polymers in a large variety of applications. READ MORE

  6. 4. Halomonas species as a source of poly(3-hydroxybutyrate). Preparation of hydrophilic macroporous polymer scaffolds

    Author : Daniel Guzmán; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Halomonas species; poly 3-hydroxybutyrate ; genome sequence; Fed-batch cultivation; macroporous scaffolds;

    Abstract : This thesis presents studies on moderately halophilic bacteria belonging to the family Halomonadaceae that accumulate polyhydroxybutyrate (PHB) in high amounts when grown under conditions of nitrogen limitation. PHB is the simplest homopolymer belonging to the class of polyhydroxyalkanoates (PHAs), the biopolyesters that can biodegraded in the environment to carbon dioxide and water and are hence attractive substitutes for fossil-derived plastics. READ MORE

  7. 5. Metabolic engineering of Saccharomyces cerevisiae for polyhydroxybutyrate production

    Author : Kanokarn Kocharin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; S. cerevisiae; Acetyl-CoA; NADPH; Metabolic engineering; Polyhydroxybutyrate;

    Abstract : Establishing industrial biotechnology for the production of chemical compounds from the biosynthetic pathway has received a significant boost with the implementation of metabolic engineering. At present, metabolic engineering in Saccharomyces cerevisiae gains significant advantages of integration of knowledge acquired through a long history of use and data acquisition from novel –omics technologies hence enabling the development of a tailor-made S. READ MORE