Search for dissertations about: "ultracentrifugation"

Showing result 1 - 5 of 27 swedish dissertations containing the word ultracentrifugation.

2. 1. Wheat Flour Dough-Rheological and Structural Aspects

   Author : Helena Larsson; Livsmedelsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; starch gel; gluten; water distribution; lipids; starch granule surface; starch content; mixing; ultracentrifugation; structure; rheological measurements; wheat flour dough; phase separation; ethyl hydroxyethyl cellulose; Food and drink technology; Livsmedelsteknik;

   Abstract : The thesis presents a rheological study on wheat flour dough, in relation to the structural influence of the different dough constituents, added components and mixing time. Rheological investigations have been focused on measurements at small deformations, including dynamic oscillation and stress relaxation, although complementing measurements have been performed in large deformation viscosity experiments. READ MORE

4. 2. Characterization of Amino Acid tRNA Ligases using the Analytical Ultracentrifuge

   Author : Lars Lundvik; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; amino acid tRNA ligase; analytical ultracentrifugation;

   Abstract : ABSTRACT. Quaternary structures of amino acid tRNA ligases/synthetases (aaRS) in the native as well as in denatured forms were examined by molecular weight determinations (paper I-IV). Analytical ultracentrifugation, gel electrophoresis, gel chromatography were used in these investigations. READ MORE

5. 3. Utilization of Andean grain flours in the development of wheat flour dough

   Author : Sander Jonathan Pérez Villarroel; Avdelningen för livsmedel och läkemedel; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Wheat; Andean grains; Amaranth; Amaranthus caudatus; Canahua; Chenopodium pallidicaule; Quinoa; Chenopodium quinoa; Dough; Substitution; Ultracentrifugation; Phase separation; Dough composition; Macroscopic separation; Freezable water; Textural properties; Compression; Uniaxial tension; Biaxial tension; Principal component analysis; Partial least square regression; Bread;

   Abstract : Bread dough was studied in relation to three Andean grain flours, quinoa (Chenopodium quinoa), amaranth (Amaranthus caudatus) and canahua (Chenopodium pallidicaule), as partial replacements for wheat flour with the perspectives of dough and breadmaking. This thesis deals with the understanding of both dough as a complex system, consisting of various water-filled polymers, and dough as a viscoelastic material, with different responses to deformations, in order to contribute to possibilities for improvements in dough analysis and development of novel products. READ MORE

6. 4. Diagnostic methods for demonstration of intrathecal synthesis of immunoglobulines within the central nervous system

   Author : Sten Öhman; Linköpings universitet; []
   Keywords : MEDICINE; MEDICIN;

   Abstract : This thesis is based upon studies of quantitative and qualitative determinations of immunoglobulins A, G, and M (lgA, IgG, and IgM) in cerebrospinal fluid (CSF) and in serum. Inflammatory diseases, such as multiple sclerosis and infections (e.g. READ MORE

7. 5. Mutant superoxide dismutase-1-caused pathogenesis in amyotrophic lateral sclerosis

   Author : Daniel Bergemalm; Stefan Marklund; Thomas Brännström; Peter Andersen; Caterina Bendotti; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ALS; SOD1; mitochondria; proteome; transgenic mice; inclusion; Clinical chemistry; Klinisk kemi; biokemi; Biochemistry; neurologi; Neurology; Clinical Chemistry; klinisk kemi; patologi; Pathology;

   Abstract : Amyotrophic lateral sclerosis (ALS) is a devastating disease that affects people in their late mid-life, with fatal outcome usually within a few years. The progressive degeneration of neurons responsible for muscle movement (motor neurons) throughout the central nervous system (CNS) leads to muscle wasting and paralysis, and eventually affects respiratory function. READ MORE