Sökning: "barley husks"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden barley husks.

  1. 1. Hemicelluloses from Agricultural and Forestry Crops Isolation, Characterisation, and Enzymatic Hydrolysis

    Författare :Alexandra Andersson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Proteiner; enzymologi; Physical chemistry; Fysikalisk kemi; enzymology; hydrogels; Plant biochemistry; Växtbiokemi; Proteins; a-galactosidase; b-mannanase; hemicellulase; corn fibre; barley husks; spruce; size-exclusion chromatography; arabinoxylan; microwave irradiation; steam pretreatment; membrane filtration; hemicellulose; galactoglucomannan;

    Sammanfattning : Hemicelluloses are tremendous sources of renewable raw materials, which utilisation have the potential to be highly increased in the future. Hemicelluloses are among the major groups of compounds in plant cell walls, together with cellulose and lignin. These three components are closely associated, making them difficult to separate from each other. LÄS MER

  3. 2. Isolation, Characterization and Material Properties of Arabinoxylan from Barley

    Författare :Anders Höije; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical structure; moisture content; film formation; Arabinoxylan; isolation; mechanical properties; oxygen permeability;

    Sammanfattning : The growing amount of household waste and the limited supply of fossil fuel on earth make it important to find renewable resources for the production of biodegradable polymers for a variety of applications, particularly as packaging and other disposable products. Hemicelluloses are important components in all plants and the second most abundant plant biopolymers on earth. LÄS MER

  4. 3. Effects of Dietary Fibre and Probiotics on Hindgut Fermentation in Healthy Rats and in Rats with Dextran Sulphate Sodium-Induced Colitis and Colon Cancer

    Författare :Camilla Bränning; Avdelningen för livsmedel och läkemedel; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; carboxylic acids; probiotics; short-chain fatty acids; hindgut fermentation; Colonic health; prebiotics; microbiota; dietary fibre;

    Sammanfattning : The importance of colonic fermentation has been realised during recent years as it has been found to be associated with colonic health and thus the overall health of the individual. The fermentation of dietary fibre and the addition of probiotics can have positive effects on the luminal environment and the colonic microbiota. LÄS MER

  5. 4. Hydrolysis of by-products from cereal kernels for improved ethanol production

    Författare :Beatriz Palmarola Adrados; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical technology and engineering; starch-free fibres; Kemiteknik och kemisk teknologi; wheat starch fibres; starch-free bran; wheat bran; SSF; enzymatic hydrolysis; H2SO4; microwave pretreatment; Ethanol production; steam pretreatment;

    Sammanfattning : This work deals with the hydrolysis of lignocellulosic agricultural residues, by means of combined pretreatment and enzymatic hydrolysis, to be used for ethanol production. Four agricultural by-products, i.e. LÄS MER

  7. 5. Improving cellulose fibre properties by controlled adsorption of xylans

    Författare :Tobias Köhnke; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Isolation; Lignin-carbohydrate complexes; Adsorption; Extraction; Tensile strength; Aggregation; Softwood kraft pulp; Cellulose fibre; Hornification; Xylan;

    Sammanfattning : Hemicelluloses are, together with cellulose and pectins, the polysaccharide constituents in the cell walls of higher plants. Xylans are the most common hemicelluloses, and are considered to be the second most abundant biopolymer in the plant kingdom. LÄS MER