Sökning: "biocatalysts"

Visar resultat 16 - 20 av 46 avhandlingar innehållade ordet biocatalysts.

1. 16. Biocatalysis in Organic Media: Parameters Influencing Activity, Stability and Enantioselectivity

   Författare :David Costes; Bioteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Chemical technology and engineering; Biotechnology; Bioteknik; Proteins; enzymology; Proteiner; enzymologi;

   Sammanfattning : Biocatalysis in organic media offers very attractive methods to prepare fine chemicals. The biocatalyst performance regarding activity, stability and enantioselectivity will determine the viability of the bio-process. LÄS MER

3. 17. Structural studies of HDL and applications of EM on membrane proteins

   Författare :Lin Zhu; Hans Hebert; Caroline Jegerschöld; Catherine Vénien-Bryan; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; high density lipoprotein; rHDL; apoA-I; transmission electron microscopy; membrane protein; nanodisc; Salipro; transporter; Technology and Health; Teknik och hälsa;

   Sammanfattning : A large number of proteins interact with biological membranes, either integrated in the membrane (PepTSo2), embedded on a membrane surface (5-lipoxygenase) or encircling a cutout of lipid bilayer (apolipoprotein1 (apoA-I). They function as transporters, receptors or biocatalysts in cellular processes like inflammation or cholesterol transport which are touched upon here. LÄS MER

4. 18. Stability and inactivation mechanisms of two transaminases

   Författare :Shan Chen; Per Berglund; Patrick Adlercreutz; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Amine Transaminase; Operational Stability; Inactivation Pathway; Enzyme Unfolding; Phosphate Group Binding Cup; Bioteknologi; Biotechnology;

   Sammanfattning : In the past decades, more and more enzymes are employed as biocatalysts in industrial processes because of their advantages, such as high efficiency, substrate selectivity and stereoselectivity. Among them, amine transaminases (ATAs) are pyridoxal 5’-phosphate (PLP) dependent enzymes. LÄS MER

5. 19. Characterization and engineering of carbohydrate-active enzymes for biotechnological applications

   Författare :Noor Hassan; Christina Divne; Eva Nordberg Karlsson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; se conversion; galacto-oligosaccharides; thermostability; propeptide; Bioteknologi; Biotechnology;

   Sammanfattning : Extremozymes are enzymes produced by microorganisms that live in extreme habitats. Due to their higher stability, extremozymes is attracting interest as biocatalysts in various industrial processes. In this context, carbohydrate-active extremozymes can be used in various processes relevant to the paper, food and feed industry. LÄS MER

7. 20. Biochemical Studies on a Plant Epoxide Hydrolase : Discovery of a Proton Entry and Exit Pathway and the Use of In vitro Evolution to Shift Enantioselectivity

   Författare :Ann Gurell; Mikael Widersten; Bengt Mannervik; Dick Janssen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; epoxide hydrolase; enantioselectivity; in vitro evolution; proton wire; epoxides; selectivity; CASTing; structure-function; Biochemistry; Biokemi; Biokemi; Biochemistry;

   Sammanfattning : The work leading to this thesis has provided additional information and novel knowledge concerning structure-function relationship in the potato epoxide hydrolase. Epoxide hydrolases are enzymes catalyzing the hydrolysis of epoxides to yield the corresponding vicinal diols. LÄS MER