Sökning: "Industrial work groups"

Visar resultat 21 - 25 av 179 avhandlingar innehållade orden Industrial work groups.

  1. 21. Enzymatic Synthesis of Alkyl Glycosides. New Applications for Glycoside Hydrolases

    Författare :David Svensson; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CGTase; cyclodextrin glycosyltransferase; alkyl glycoside; enzyme stabliity; enzymatic synthesis; enzyme immobilisation; surfactant; glycosylation;

    Sammanfattning : The environmental problems caused by human interventions, such as the consumption of non-renewable resources and the emission of greenhouse gases are well-recognised. Calls have been made for immediate measures to develop more sustainable society worldwide. LÄS MER

  3. 22. Mapping Phenolics Metabolism and Metabolic Engineering of Saccharomyces cerevisiae for Increased Endogenous Catabolism of Phenolic Compounds

    Författare :Peter Adeboye; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; toxicity; Keywords: Phenolic compounds; Saccharomyces cerevisiae; conversion; inhibitor;

    Sammanfattning : AbstractSustainable, biotechnological utilization of non-food, plant biomass has been demonstrated to be a viable means of producing energy, fuels, materials and chemicals, representing a paradigm shift from fossil-derived sources. However, the presence of chemicals that inhibit fermentation by microorganisms such as Saccharomyces cerevisiae, commonly used for bioconversion, causes a bottleneck in such processes. LÄS MER

  4. 23. Microstructure and Gelation Behaviour of High Methoxyl and Low Methoxyl Pectin Gels and their Mixtures

    Författare :Caroline E E Löfgren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; rheology; kinetic behaviour; LM pectin; transmission electron microscopy; calcium; microstructure; gel formation; sucrose; HM pectin; pectin mixtures;

    Sammanfattning : The objective of this thesis was to explore the functional behaviour of high methoxyl (HM), low methoxyl (LM) and mixed HM/LM pectin gels of different chemical characteristics with emphasis on microstructure and kinetic rheological behaviour. The rheological properties and the structure of pectin gel networks were investigated for pectins under different sucrose, calcium and pH conditions by the means of oscillatory measurements and transmission electron microscopy (TEM). LÄS MER

  5. 24. Specific Precipitation of Biomolecules Using Synthetic Polymers

    Författare :Per-Olof Wahlund; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Polymerteknik; RNA; plasmid DNA; DNA; polyelectrolyte complexes; synthetic polymers; precipitation; affinity precipotation; Bioteknik; Polymer technology; biopolymers;

    Sammanfattning : Purification is a very important stage in biotechnological processes. The traditionally used precipitation techniques are generally nonspecific and thus one or more chromatographic steps are normally required. There is thus a need for new approaches to improve existing techniques. LÄS MER

  7. 25. Electric DNA chips for determination of pathogenic microorganisms

    Författare :Yanling Liu; Sven-Olof Enfors; Thomas Schweder; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electric DNA chip array; fast determination; virulence genes; multiplexed gene detection; bacterial colony; ultrasonication; DNA fragmentation; Bacillus cereus; Biology; Biologi; Bioengineering; Bioteknik;

    Sammanfattning : Silicon-based electric DNA chip arrays were utilized to fast identify pathogenic microorganisms with respect to the capacity to produce toxins involved in foodborne poisoning and infections. Bacteria of the B. cereus and the enterohemorrhagic E. LÄS MER