Sökning: "Sample pretreatment"

Visar resultat 16 - 20 av 26 avhandlingar innehållade orden Sample pretreatment.

  1. 16. Texture and color of potato products

    Författare :Sandra Segnini; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; potato processing; sensory evaluations; L*a*b*; French fries; potato chips; Texture; color; Food and drink technology; Livsmedelsteknik;

    Sammanfattning : Texture and color are the most important parameters in the definition of the quality of potato products, but usually their subjective measurements do not give any reproducible results due to the complicating factors related to human perception. In order to understand the factors that can affect the texture and the color of the potato products during processing, instrumental techniques have been developed for quantifying those parameters. LÄS MER

  3. 17. Capillary electrophoresis and multivariate calibration in the analysis of natural waters

    Författare :Johan Dahlén; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : The aim of this work was to explore the applicability of capillary zone electrophoresis (CZE) and multivariate partial least squares (PLS) regression in the analysis of organic compounds and inorganic ions in natural waters. A new CZE application was developed to analyze low molecular weight (LMW) organic acids. LÄS MER

  4. 18. Off-flavours in drinking water : Analytical procedures and treatment effects in biologically active sand filters

    Författare :Bo Lundgren; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : Taste and odour problems in drinking water are primarily caused by naturally produced, volatile, organic compounds. So far, research in this field has focused on a relatively small number of known compounds. LÄS MER

  5. 19. Evaluation of polysucrose 15000 as a marker of intestinal permeability

    Författare :Hans Öman; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Polysucrose Permeability Intestinal Absorption Cell Memhrane Permeahility Molecular WeightMacromolecular systems Biological Markers Biological Transport Crohn Disease Arthritis; RheumatoidAnti-lnflammatory Agents; Non-Steroidal Chromium Radioisotop;

    Sammanfattning : Polysucrose (PS) is a synthetic copolymer of sucrose and epichlorohydrin, which can be produced in a variety of molecular sizes. The aim of the study was to evaluate the functionality of PS 15000, mean mol wt 14700, as a marker for intestinal permeability to macro molecules. LÄS MER

  7. 20. Low Molecular Weight Organic Acids and Their Aluminium Complexes in Forest Soils

    Författare :Patrick van Hees; F. C. Ugolini; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The significance of low molecular weight (LMW) organic acids and their aluminium (Al) complexes in soil solutions of podzolized soils was examined. Methods for the analysis of these compounds and complexes were developed, and the impact of these substances on the weathering and podzolization processes was studied. LÄS MER