Search for dissertations about: "Biopolymer"

Showing result 1 - 5 of 57 swedish dissertations containing the word Biopolymer.

  1. 1. Flow processing and gel formation for producing biopolymer drops with functional shapes and diffusion properties

    Author : Bernhard Walther; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; drop deformation; 4-roll mill; biopolymer; agarose; shear; Kappa-carrageenan; elongation; microstructure; flow processing; drop-shaping; rheology; poly ethyleneglycol ; diffusion; gelatine; NMR; gel formation; TEM; flow channel;

    Abstract : This thesis focuses on the development of novel processes which combine flow-induced drop deformation and simultaneous temperature-induced gel formation in order to create shaped biopolymer drops. The drops are functional in terms of rheology and diffusion properties, factors strongly influencing the consistency of food products and flavour or drug release. READ MORE

  2. 2. Rheological Behaviour of Biopolymer Gels in Relation to Structure

    Author : Mats Stading; [1993]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; particulate gels; fine-stranded gels; mixed gels; biopolymer gels; inhomogeneous gels; rheological properties; rheological behaviour;

    Abstract : The rheological behaviour of biopolymer gels with different network structures was studied to elucidate how the structure of the gel influences its rheological properties. Non-destructive viscoelastic measurements and fracture techniques were used. READ MORE

  3. 3. Structure Evolution during Phase Separation and Gelation of Biopolymer Mixtures

    Author : Niklas Lorén; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microstructure; gelatin maltodextrin; biopolymer mixtures; structure evolution; phase separation; stereology; confocal laser scanning microscopy; image analysis; spinodal decomposition; transmission electron microscopy; gelation;

    Abstract : This thesis focuses on the kinetics of phase separation and gelation in aqueous mixtures of gelatin and maltodextrin. The structure evolution of these mixtures at different length scales was recorded by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). The microstructure was quantified by image analysis. READ MORE

  4. 4. Films and composites based on chitosan, wheat gluten or whey proteins -Their packaging related mechanical and barrier properties

    University dissertation from Stockholm : Fiber- och polymerteknologi

    Author : Mikael Gällstedt; [2004]
    Keywords : packaging; renewable; oxygen barrier; chitosan; gluten; whey; biopolymer;

    Abstract : .... READ MORE

  5. 5. Environmental assessment of emerging technologies: the case of biopolymers

    University dissertation from Stockholm : Fiber- och polymerteknologi

    Author : Selim Nouri; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; life cycle assessment; cost assessment; environmental assessment; process modeling; biopolymer;

    Abstract : Current efforts to mitigate climate change, using renewable resources and reducing waste, drives the development of new industrial processes. In this study we examine the technologies for conversion of biomass to plastics. READ MORE