Sökning: "characterisation of carbohydrates"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden characterisation of carbohydrates.

  1. 1. Investigation of Carbohydrate Hydrolysing Enzymes in Applications for Characterisation and Synthesis of Carbohydrates

    Författare :Carina Nilsson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; enzyme hydrolysis; characterisation of carbohydrates; Analytical chemistry; mass spectrometry;

    Sammanfattning : Cellulose and starch are non-toxic, biodegradable and modifiable polymers. These properties have made them increasingly important in industrial products e. g. in pharmaceutical applications and in technical dispersions. LÄS MER

  3. 2. Microdialysis Sampling, Electrochemical Detection and Mass Spectrometry of Carbohydrates in Monitoring Bioprocesses

    Författare :Nelson Torto; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; monosaccharides; membrane; IPED; ion spray; probe internal geometry; extraction fraction; electrochemical oxidation; electrochemical detection; disaccharides; desalting; carbohydrates; bioprocess monitoring; Cu; APCI; Au; MS; oligosaccharides; PAD; PEI; Analytical chemistry; Analytisk kemi;

    Sammanfattning : This thesis addresses; (1) the microdialysis experiment, application and methodology to maximise its performance when sampling from enzymatic bioprocesses, (2) electrochemical detection and electrochemical oxidation of carbohydrates on Au as well as Cu electrodes in alkaline solutions, and (3) coupling and maximising the performance of a microdialysis sampling based high performance anion exchange chromatography-integrated pulsed electrochemical detection-mass spectrometry system. Studies were carried out to investigate the effect of temperature, analyte as well as biomatrix complexity, analyte concentration, permeability factors, protein(enzyme)-membrane interaction and membrane material on the performance of microdialysis sampling. LÄS MER

  4. 3. Molecular recognition of carbohydrates : structural and functional characterisation of bacterial toxins and fungal lectins

    Författare :Åsa Holmner Rocklöv; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat-labile enterotoxin; cholera toxin; blood group antigen; infectious diseases; x-ray crystallography; protein-carbohydrate complexes;

    Sammanfattning : .... LÄS MER

  5. 4. Lignin polysaccharide networks in softwood and chemical pulps : characterisation, structure and reactivity

    Författare :Martin Lawoko; Göran Gellerstedt; Gösta Brunow; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : The chemical interactions between the main wood components i.e., cellulose, hemicelluloses and lignin are of fundamental importance for understanding the chemical aspects of wood formation and its reactivity during fibre processing e.g during chemical pulping of wood. LÄS MER

  7. 5. Nutritional and physicochemical characterisation of dietary fibre in wheat fractions

    Författare :Lina Haskå; Avdelningen för livsmedel och läkemedel; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dietary fibre; fructan; arabinoxylan; wheat; distillers grains; short-chain fatty acids; microbiota;

    Sammanfattning : Dietary fibre is fermented in the colon to short-chain fatty acids (SCFAs), of which especially butyric and propionic acid may have health-promoting effects. One source of dietary fibre may be by-products from wheat, which are currently used as animal feed. LÄS MER