Sökning: "Biocatalysts"

Visar resultat 1 - 5 av 46 avhandlingar innehållade ordet Biocatalysts.

  1. 1. Cryogels Based on Crosslinked Cells as Green Biocatalysts for Biotechnology

    Författare :Oksana Zaushitsyna; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cells; Crosslinkers; PVA PEI; Immobilization; Biocatalysts; Biobased chemicals; Biotransformation; stress tolerance;

    Sammanfattning : Abstract Due to the finite nature of fossil resources and their environmental impact, such as greenhouse gases and climate change, the bio-based production of chemicals, materials and fuels is the subject of extensive research in industrial biotechnology. Biotransformation and fermentation are considered to be mild, “green” processes that make use of effective and reliable biocatalysts to provide bio-based chemicals. LÄS MER

  3. 2. 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. 3. Immobilizing catalysts on textiles : case of zerovalent iron and glucose oxidase enzyme

    Författare :Mohammad Neaz Morshed; Vincent Nierstrasz; Frank Hollmann; Högskolan i Borås; []
    Nyckelord :Biocatalysts; Catalyst immobilization; Catalytic reduction; Chitosan; Dye removal; Environmental remediation; Enzyme immobilization; Glucose oxidase; Hyperbranched dendrimers; Heterogeneous catalysis; Heterogeneous bio-Fenton; Heterogeneous Fenton; Inorganic catalysts; Phenol removal; Polyester nonwoven fabric; Pathogenic bacteria removal; Plasma ecotechnology; Polyethylenimine; Textile catalyst; Textile biotechnology; Textile surface modification; Wastewater treatment; Zerovalent iron; 生物催化剂; 涤纶无纺布; 金属颗粒：铁固定化; 超支化树状大分子; 聚酰胺胺树状大分子 3-氨基丙基）; 三乙氧基硅烷; 1-硫代甘油; 聚乙烯胺; 壳聚糖; 葡萄糖氧化酶; 氧化还原酶; 酶固定化，物理吸附; 纤维催化剂; 多相催化; 抗菌纺织品; 革兰氏阳性（G ve）菌 革兰氏阴性（G-ve）菌; 类芬顿; 生物芬顿; 染料去除; 苯酚去除; 生物催化; 产业纺织品; 纺织生物技术; 纺织品表面改性; 环境治理; 废水处理; 零价铁。; Biocatalyseurs; Immobilisation de catalyseurs; Reduction de catalyseurs; Chitosane; Élimination de colorants; Assainissement de l’environnement; Immobilisation d’enzymes; Glucose oxydase; Dendrimères hyper-ramifiés; Catalyse hétérogène; Bio-Fenton hétérogène; Fenton hétérogène; Catalyseurs inorganiques; Élimination de phénols; Non-tissé Polyester; Élimination de bactéries pathogènes; Écotechnologie plasma; Polyéthylèneimine; Catalyseur textile; Biotechnologie textile; Modification de surface textile; Traitement des eaux usées; Fer zéro-valent; Biokatalysatorer; Katalysatorimmobilisering; Katalytisk reduktion; Kitosan; Avlägsnande av färgämnen; Miljösanering; Enzymimmobilisering; Glukosoxidas; Hypergrenade dendrimerer; Heterogen katalys; Heterogen bio-Fenton; Heterogen Fenton; Oorganiska katalysatorer; Fenolavlägsnande; Polyester fiberduk; Avlägsnande av patogena bakterier; Plasmaekoteknik; Polyetylenimin; Textil katalysator; Textil bioteknik; Modifiering av textilytor; Avloppsrening; Zerovalent järn; Textil och mode generell ; Textiles and Fashion General ;

    Sammanfattning : Catalytic systems are one of the most effective technologies of modern chemical processes. The system uses a molecule called ‘catalyst’ that is capable of catalyzing a reaction without being produced or consumed during the process. LÄS MER

  5. 4. Beta-Glycosidases from Hyperthermophiles as Biocatalysts

    Författare :Therese Hansson; Avdelningen för klinisk kemi och farmakologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioteknik; Biochemical technology; Biokemisk teknik; Proteins; enzymology; Proteiner; enzymologi; Biotechnology; high temperatures; water activity; activity; selectivity; hexanol; hexyl-b-glycoside; galacto-oligosaccharides; lactose; hyperthermostable b-glycosidase; hydrolysis; optimisation; transglycosylation;

    Sammanfattning : The thesis concerns glycosyl transfer with use of b-glycosidases, most of them from hyperthermophilic organisms. Both optimisation of the reaction conditions and protein engineering in terms of site-directed mutagenesis were used to improve b-glycosidase-catalysed reactions. LÄS MER

  7. 5. Droplet microfluidics for directed evolution of biocatalysts

    Författare :Staffan Sjöström; Helene Andersson Svahn; Florian Hollfelder; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Droplet microfluidics; Enzymes; directed evolution; high throughput screening; Bioteknologi; Biotechnology;

    Sammanfattning : Biocatalysts, biologically derived catalysts, are of great importance for a wide range of industrial applications. They are used in the production of for example foods, pharmaceuticals and biofuels. Improving biocatalysts commonly relies on directed evolution, i.e. LÄS MER