Sökning: "microwave pretreatment"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden microwave pretreatment.

  1. 1. Hydrolysis of by-products from cereal kernels for improved ethanol production

    Författare :Beatriz Palmarola Adrados; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical technology and engineering; starch-free fibres; Kemiteknik och kemisk teknologi; wheat starch fibres; starch-free bran; wheat bran; SSF; enzymatic hydrolysis; H2SO4; microwave pretreatment; Ethanol production; steam pretreatment;

    Sammanfattning : This work deals with the hydrolysis of lignocellulosic agricultural residues, by means of combined pretreatment and enzymatic hydrolysis, to be used for ethanol production. Four agricultural by-products, i.e. LÄS MER

  3. 2. Hemicelluloses from Agricultural and Forestry Crops Isolation, Characterisation, and Enzymatic Hydrolysis

    Författare :Alexandra Andersson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Proteiner; enzymologi; Physical chemistry; Fysikalisk kemi; enzymology; hydrogels; Plant biochemistry; Växtbiokemi; Proteins; a-galactosidase; b-mannanase; hemicellulase; corn fibre; barley husks; spruce; size-exclusion chromatography; arabinoxylan; microwave irradiation; steam pretreatment; membrane filtration; hemicellulose; galactoglucomannan;

    Sammanfattning : Hemicelluloses are tremendous sources of renewable raw materials, which utilisation have the potential to be highly increased in the future. Hemicelluloses are among the major groups of compounds in plant cell walls, together with cellulose and lignin. These three components are closely associated, making them difficult to separate from each other. LÄS MER

  4. 3. Process Development of Bioethanol Production from Wheat and Barley Residues Steam Pretreatment and SSF

    Författare :Marie Linde; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbochemistry; Kemiteknik och kemisk teknologi; Chemical technology and engineering; metabolism; Biokemi; Metabolism; Biochemistry; Barley straw; Wheat straw; DDGS; Fermentation; SSF; Enzymatic hydrolysis; H2SO4; Ethanol production; Steam pretreatment; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen; Wood; pulp and paper technology; Pappers- och massateknik; Biotechnology; Bioteknik;

    Sammanfattning : Bioethanol has received increasing attention as an alternative to petrol due to the current dependency on supplies from other countries and due to the increased concentration of the greenhouse gas carbon dioxide in the atmosphere. In this thesis, the development of 2nd generation production processes for bioethanol production from the lignocellulosic part of biomass is discussed. LÄS MER

  5. 4. Transurethral microwave thermotherapy of benign prostatic hyperplasia : a clinical and methodological evaluation

    Författare :Anders Hallin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :benign prostatic hyperplasia; microwave thermotherapy; long-termfollow-up; MRI; semen; androgen.ISBN;

    Sammanfattning : Transurethral microwave thermotherapy (TUMT) is a relatively new type of treatment for symptomatic benign prostatic hyperplasia. The aim of this study was to evaluate different aspects of TUMT such as catheter characteristics, morphological changes, effects on hormones and semen emission as well as to assess long-term treatment outcome. LÄS MER

  7. 5. Transurethral microwave thermotherapy and transurethral resection of the prostate. Evaluation and development

    Författare :Fredrik Stenmark; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TUMT; CoreTherm; The CoreTherm Concept; TURP; Adrenaline;

    Sammanfattning : ABSTRACT Lower urinary tract symptoms (LUTS) are common among men and become more prevalent with increasing age. One frequent cause is benign prostatic obstruction (BPO). Patients with LUTS/BPO can be ameliorated if the obstructive tissue is removed. LÄS MER