Sökning: "protein denaturation"

Visar resultat 16 - 20 av 55 avhandlingar innehållade orden protein denaturation.

1. 16. Sweet stability

   Författare :Kajsa Ahlgren; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; myoglobin; lysozyme; amyloid fibrils; DSC; trehalose; protein denaturation; neutron scattering; glass transition; sucrose;

   Sammanfattning : The disaccharide trehalose is known for its ability to stabilise proteins by preventing aggregation and elevating their denaturation temperature, consequently avoiding unfolding. The folding and function of proteins are vital for many biological processes. LÄS MER

3. 17. Biophysical Studies of Apolipoprotein A-IM and a Partitioning study

   Författare :Malin Suurkuusk; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Apolipoprotein A-IMilano; Apolipoprotein A-I; Lipoprotein; Lipid; Microcalorimetry; DCS; Denaturation; Guanidine Hydrochloride; Physics; Fysik; Chemistry; Kemi;

   Sammanfattning : The major part of this thesis deals with the similarities and differences in some biophysical properties of apolipoprotein A-I (apo A-I) and the molecular variant apolipoprotein A-IMilano (apo A-IM), and the influence on lipid binding. A model compound partitioning study has also been performed. LÄS MER

4. 18. Fouling and cleaning of solid surfaces. The influence of surface characteristics and operating conditions

   Författare :Camilla Karlsson; Livsmedelsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Food and drink technology; ellipsometry; sodium hydroxide; anionic surfactant; betalactoglobulin; protein; stainless steel; hydrophilic surface; hydrophobic surface; cleaning; adsorption; fouling; Livsmedelsteknik; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

   Sammanfattning : The severe fouling common in food processing puts high demands on equipment cleaning. Adsorption of the protein betalactoglobulin to solid surfaces and its subsequent removal were followed using in situ ellipsometry. Most experiments were done in a stirred cuvette. Additionally, a flow cell was designed, which was employed in some work. LÄS MER

5. 19. Improving selectivity in protein extraction by subtle interactions and environmental changes

   Författare :Sheryl Fernandes; Bioteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Difference Spectroscopy; Circular dichroism; Biotechnology; Bioteknik; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Fluorescence spectroscopy; Metal ions; Cibacron blue; Polyvinylpyrrolidone; Polyethylene glycol; Triton X-114; His 6 tag; Cold-active ß-lactamase; Cold-active ß-galactosidase; Lactate dehydrogenase; Cutinase; Affinity Extraction; Conformational change; Partial Denaturation; Molecular interaction; Aqueous two-phase systems; Detergent foam;

   Sammanfattning : The challenges for efficient bioprocesses lie in developing and adapting further current technologies or in creating innovative separation technologies. The thesis is based on the studies on protein recovery from crude feedstocks by extraction in aqueous two-phase systems and detergent foam, respectively. LÄS MER

7. 20. Exploring Protein Functions by Molecular Modelling

   Författare :Guido Todde; Sven Hovmöller; Valerie Daggett; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysikalisk kemi; Physical Chemistry;

   Sammanfattning : Proteins are one of the most important families of biological macromolecules. Proteins can assume many different structures. This makes them perfect to serve a wide range of functions in all organisms. In the last decades, molecular modeling has become an important and powerful tool in the investigation of biological systems. LÄS MER