Search for dissertations about: "mannan"

Showing result 1 - 5 of 35 swedish dissertations containing the word mannan.

  2. 1. Characterization of cutaneous oedema : modelling and mesurements methods

    Author : Mannan Mridha; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Three different methods have been developed to characterize oedema. The methods can be applied on any site of the skin to study the effect of oedema on the mechanical properties of the skin. Changes in the viscoelastic properties of the oedematous tissues after treatment can be monitored by these methods. READ MORE

  4. 2. β-Mannan degradation by gut bacteria - Characterization of β-mannanases from families GH5 and GH26

    Author : Evelina Kulcinskaja; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; glycoside hydrolases; gut microflora; mannan; enzymes; GH26; GH5; β-mannanase;

    Abstract : The human gut flora is important for our well-being. The gut bacteria are able to degrade and metabolize complex carbohydrates. Examples of such carbohydrates are β-mannans. β-Mannans consist of a backbone of β-1,4-linked mannose units and are present in e. READ MORE

  5. 3. Crohn's disease : Studies on epidemiology, twins, aetiological factors and clinical course with special reference to smoking

    Author : Eva Lindberg; Linköpings universitet; []
    Keywords : Crohn s disease; epidemiology; incidence; prevalence; smoking; genetics; twins; dietary antigens; yeast; Saccharomyces cerevisiae; mannan; gliadin; betalactoglobulin; ovalbuntin; MEDICINE; MEDICIN;

    Abstract : In an epidemiological study of the incidence of Crohn's disease in Orebro county during the 25-year period 1963-1987, the mean annual incidence was 6.1/105 inhabitants. During the first five year period the mean incidence was 4.3 but during the following four quinquennia the incidence was stable at around 6. READ MORE

  6. 4. Extraction of polymeric rapeseed straw hemicelluloses for renewable films

    Author : Antonia Svärd; Ulrica Edlund; Elisabet Sjöholm; Emma Strömberg; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rapeseed straw canola straw; hemicellulose; xylan; mannan; extraction; characterization; severity factor; hemicellulose film; Kemi; Chemistry;

    Abstract : Polymeric hemicelluloses with high molecular weight were extracted from rapeseed straw with a straight forward hydrothermal extraction method, evaluated and refined by statistical factorial screening design and ‘severity factor’ analysis. The influence of the extraction conditions, time, temperature and pH of the extraction liquid, on the composition, molecular weight, yield and properties was unveiled. READ MORE

  7. 5. Exploring beta-mannan acting glycosidase families in hydrolysis and mannosyl transfer

    Author : Simon Birgersson; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; glycoside hydrolases; beta-mannanase; Transglycosylation; enzymatic synthesis; Enzyme synergy; enzyme engineering; MALDI-TOF; HPLC; NMR;

    Abstract : The thesis revolves around the study of glycoside hydrolases (GH), specifically GH5 β-mannanases and GH36 α-galactosidase (I-III), as well as a GH130 mannoside phosphorylase (I, IV). These enzymes are investigated for their actions on and conversion of hemicellulosic β-mannan, including food-grade galactomannan and softwood galactoglucomannan, along with manno-oligosaccharides (MOS) derived from such polymers. READ MORE