Sökning: "enzyme"

Visar resultat 36 - 40 av 2421 avhandlingar innehållade ordet enzyme.

  1. 36. Immobilization of feruloyl esterases in mesoporous silica

    Författare :Christian Thörn; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mesoporous materials; Feruloyl esterases; Protein modeling; Biocatalysis; QCM-D; Hydroxycinnamic acids; Enzyme immobilization; Silica;

    Sammanfattning : Feruloyl esterases are a class of enzymes that can be used as biocatalysts for the modification of bioactive hydroxycinnamic acids. In industry, enzyme immobilization is often necessary to stabilize the enzymes and to allow their reuse. LÄS MER

  3. 37. Engineered Alcohol Dehydrogenases for Stereoselective Chemical Transformations

    Författare :Thilak Reddy Enugala; Mikael Widersten; Manfred T. Reetz; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alcohol dehydrogenase-A; biocatalysts; protein engineering; enzyme kinetics; sec-alcohols; ketones; stereoselectivity; regioselectivity; substrate selectivity and promiscuity.; Biokemi; Biochemistry;

    Sammanfattning : Enzymes are biomolecules built from amino acids and catalyze the chemical transformations in a cell. Enzymes are by nature stereoselective, biodegradable, environmentally friendly, and can perform catalysis in aqueous solutions and at ambient temperatures. LÄS MER

  4. 38. Catalysis and Site-Specific Modification of Glutathione Transferases Enabled by Rational Design

    Författare :Sofia Håkansson Hederos; Lars Baltzer; Kerstin Broo; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalysis; Glutathione Transferases; Rational design; Protein design; Site-specific modification; thiolester hydrolysis; Enzyme engineering; Enzymteknik;

    Sammanfattning : This thesis describes the rational design of a novel enzyme, a thiolester hydrolase, derived from human glutathione transferase (GST) A1-1 by the introduction of a single histidine residue. The first section of the thesis describes the design and the determination of the reaction mechanism. LÄS MER

  5. 39. Biobased Adipic Acid - Challenges in Establishing a Cell Factory

    Författare :Emma Skoog; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 2-hexenedioic acid; enzyme engineering; 6-aminohex-2-enoic acid; S. cerevisiae; adipic acid pathway via lysine; cell factory; C. viswanathii; lignocellulose; biorefinery; tolerance; in silico docking; adipic acid;

    Sammanfattning : Growing concern regarding climate change calls for sustainable solutions to significantly reduce our dependency on non-renewable fossil-based raw materials. One potential solution is the development of biorefineries where biobased, renewable raw materials are converted into valuable products via enzymatic, chemical or microbial conversion. LÄS MER

  7. 40. On bacterial formats in protein library technology

    Författare :Per-Åke Löfdahl; Per-Åke Nygren; Mikael Widersten; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Affibody molecule; β-lactamase; combinatorial library; green fluorescent protein GFP ; protein engineering; protein fragment complementation assay PCA ; selection; TEVprotease; TNF-α; Bioengineering; Bioteknik; Enzyme engineering; Enzymteknik;

    Sammanfattning : Millions of years of evolution have resulted in an immense number of different proteins, which participate in virtually every process within cells and thus are of utmost importance for allknown forms of life. In addition, there are several examples of natural proteins which have found use in applications outside their natural environment, such as the use of enzymes infood industry and washing powders or the use of antibodies in diagnostic, bioseparation or therapeutic applications. LÄS MER