Sökning: "mannan"
Visar resultat 1 - 5 av 35 avhandlingar innehållade ordet mannan.
1. Characterization of cutaneous oedema : modelling and mesurements methods
Sammanfattning : 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. LÄS MER
2. β-Mannan degradation by gut bacteria - Characterization of β-mannanases from families GH5 and GH26
Sammanfattning : 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. LÄS MER
3. Crohn's disease : Studies on epidemiology, twins, aetiological factors and clinical course with special reference to smoking
Sammanfattning : 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. LÄS MER
4. Extraction of polymeric rapeseed straw hemicelluloses for renewable films
Sammanfattning : 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. LÄS MER
5. Exploring beta-mannan acting glycosidase families in hydrolysis and mannosyl transfer
Sammanfattning : 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. LÄS MER