Search for dissertations about: "Biopolymer"

Showing result 1 - 5 of 49 swedish dissertations containing the word Biopolymer.

  1. 1. Chitosan biopolymer as an adsorbent for drinking water treatment Investigation on Arsenic and Uranium

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Md Annaduzzaman; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chitosan Biopolymer; Characterization; Biodegradable; Arsenic V ; Uranium VI ; Adsorption; Isotherm; Kinetic model  ; Chitosan; Biopolymer; Karakterisering; Bionedbrytbar; arsenik V ; uran VI ; Adsorption; Isoterm; Kinetisk modell; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : In many countries over the world (including Sweden), metal toxicity in freshwater resources causes a severe drinking water quality problem and poses a threat to the environment and human health. Among the different toxic metals in the water resources of Sweden, arsenic and uranium are the biggest threats to health. READ MORE

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

    University dissertation from Stockholm : KTH Royal Institute of Technology

    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

  3. 3. 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; KTH.; [2004]
    Keywords : packaging; renewable; oxygen barrier; chitosan; gluten; whey; biopolymer;

    Abstract : .... READ MORE

  4. 4. 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

  5. 5. Exploring Biopolymer-Clay Nanocomposite Materials by Molecular Modelling

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yan Wang; KTH.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bio-nanocomposite; interfacial mechanism; binding affinity; dimensional stability; counterions; hydration; stress-strain behavior; xyloglucan; chitosan; chitin; molecular dynamics; montmorillonite.; 生物复合材料,界面机理,分子间亲和力,材料尺寸稳定性,抗衡离子,水合作用,应力应变表现, 木葡聚糖,壳聚糖,甲壳素,分子动力学模拟,蒙脱土; bio-nanokompositer; gränsytor; affinitet; dimensionsstabilitet; jonhydrering; spännings-töjningsbeteende; xyloglukan; kitosan; kitin; molekyldynamisk; montmorillonit.; Kemi; Chemistry; Fiber- och polymervetenskap; Fibre and Polymer Science; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : In this thesis, bio-nanocomposites made from two alternative biopolymers and montmorillonite (Mnt) clay have been investigated by molecular modelling. These biopolymers are xyloglucan (XG) and chitosan (CHS), both of which are abundant, renewable, and cost-effective. READ MORE