Sökning: "toxic substrate"

Visar resultat 1 - 5 av 93 avhandlingar innehållade orden toxic substrate.

  1. 1. Methane and Volatile Fatty Acids Production from Toxic Substrate

    Författare :- Lukitawesa; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; toxic substrate; methane; volatile fatty acid; anaerobic digestion; membrane bioreactor; factor; tubular membrane; two-stage digestion; Resource Recovery; Resursåtervinning;

    Sammanfattning : Challenges caused by climate change and global warming have created a demand for improvements in resource recovery and the promotion of a circular economy. Waste management is one such challenge for which more recycling options are required for producing materials and energy sources from wastes. LÄS MER

  3. 2. Characterization and Directed Evolution of an Alcohol Dehydrogenase : A Study Towards Understanding of Three Central Aspects of Substrate Selectivity

    Författare :Emil Hamnevik; Mikael Widersten; Gerrit Poelarends; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alcohol dehydrogenase; ADH-A; Biocatalysis; Directed evolution; Enantioselectivity; Enzyme kinetics; Enzyme mechanisms; Protein Engineering; Regioselectivity; Substrate selectivity; Biokemi; Biochemistry;

    Sammanfattning : Many different chemicals are used in the everyday life, like detergents and pharmaceuticals. However, their production has a big impact on health and environment as much of the raw materials are not renewable and the standard ways of production in many cases includes toxic and environmentally hazardous components. LÄS MER

  4. 3. Catalysis by theta-class glutathione transferases : Substrate binding, product formation and product release

    Författare :Per Jemth; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Glutathione transferases (GSTs) are detoxication enzymes that catalyze theconjugation of glutathione to a large number of electrophilic molecules. In this waythey help to rid cells of potentially toxic substances. This thesis deals with thecatalysis afforded by Theta-class glutathione transferases. LÄS MER

  5. 4. Thin-film ultraviolet light-emitting diodes realized by electrochemical etching of AlGaN

    Författare :Michael Alexander Bergmann; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; thin-film flip-chip; light-emitting diodes; UVB; AlGaN; thermocompression bonding; substrate removal; ultraviolet light; electrochemical etching; heterogeneous integration; LEDs;

    Sammanfattning : Ultraviolet (UV) light sources have a direct impact on everyone’s life. They are used to sterilize surfaces as well as for water purification. In addition, they are used in green houses to enhance health-promoting substances in plants, for phototherapy to treat skin diseases, for sensing and material curing. LÄS MER

  7. 5. Exploring the Propanediol Utilization Pathway in Lactobacillus reuteri

    Författare :Lu Chen; Bioteknik; []
    Nyckelord :Lactobacillus reuteri; propanediol utilization pathway; microcompartment; shell proteins; glycerol; 3-hydroxypropionaldehyde; 3-hydroxypropionic acid; 1; 3-propanediol; glycerol dehydratase; 1; 3-propanediol oxidoreductase; propionaldehyde dehydrogenase; redox balance; substrate selectivity;

    Sammanfattning : Concerns regarding environmental issues have led to increasing efforts for investigating sustainable production routes for the future industry that is based on renewable resources. Among the biobased chemicals, the C3-chemicals 3-hydroxypropionaldehyde (3-HPA), 1,3-propanediol (1,3-PDO) and 3-hydroxypropionic acid (3-HP), have been identified as top candidates for the chemical industry. LÄS MER