Sökning: "oxygen permeability"

Visar resultat 11 - 15 av 93 avhandlingar innehållade orden oxygen permeability.

  1. 11. 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

  3. 12. Strategies to improve the aging, barrier and mechanical properties of chitosan, whey and wheat gluten protein films

    Författare :Idoia Olabarrieta; Mikael Hedenqvist; Jose Maria Lagaron; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; biodegradable polymers; chitosan; whey protein; wheat gluten; poly ε-caprolactone ; montmorillonite; food packaging; permeability; mechanical properties; aging; pH; solubility; migration; solution casting.; Kemi; Chemistry; Kemi;

    Sammanfattning : Chitosan, Whey Protein Isolate (WPI) and vital wheat gluten (WG) are three biomaterials that have quite promising properties for packaging purposes. They have good film forming properties and good gas barrier properties in dry conditions. LÄS MER

  4. 13. Intestinal ischemia and reperfusion. Proinflammatory response and organ dysfunction

    Författare :Knut Olanders; Lund Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; traumatology; Kirurgi; ortopedi; traumatologi; orthopaedics; Surgery; inflammation; cytokine; leukocyte; reperfusion; ischemia; permeability; Intestine; endothelium;

    Sammanfattning : Intestinal I/R is considered to be an important initiating event in several pathophysiological conditions such as trauma, bleeding, sepsis and pancreatitis, frequently leading to concomitant both single and potentially multiple organ dysfunction. The purpose of this thesis was to study mechanims underlying the development of multiple organ dysfunction, with special focus on intercellular proinflammatory regulation in the concurrent development of tissue injury. LÄS MER

  5. 14. Bioprocessing, Structure and Material Properties of Arabinoxylans

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

    Sammanfattning : This work has focused on using agriculture residues as raw material for new polymeric materials. Arabinoxylans have been isolated from barley husks and endosperm fiber using alkali extraction, and the chemical composition and detailed structure have been determined. LÄS MER

  7. 15. Effect of molecular architecture of xylan on materials properties

    Författare :Maria Gröndahl; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; xylan; water content; arabinoxylan; oxygen permeability; mechanical properties; thermal properties; glucuronoxylan;

    Sammanfattning : .... LÄS MER