Search for dissertations about: "hydroxymethylfurfural"

Showing result 1 - 5 of 7 swedish dissertations containing the word hydroxymethylfurfural.

  2. 1. Molasses Purification and Valorisation : Towards a sustainable production of hydroxymethylfurfural

    Author : Mikael Sjölin; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sugar beet molasses; 5-hydroxymethylfurfural; membrane filtration; hydrolysis; dehydration; adsorption; purification; solvent regeneration;

    Abstract : The industrial transition from petrochemical-based to a more sustainable and circular economy requires the utilisation of renewable biobased raw materials that do not compete with other important industries, such as the food sector, preferably wastes or low value by-products. 5-hydroxymethylfurfural (HMF) is a versatile platform chemical that has great potential for utilisation in various sectors in a future bioeconomy, as it can be produced from sugars. READ MORE

  4. 2. New approaches for synthesis and analysis of adducts to N-terminal valine in hemoglobin from isocyanates, aldehydes, methyl vinyl ketone and diepoxybutane

    Author : Ronnie Davies; Margareta Törnqvist; Leif Kronberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbamoylation; modified-Edman procedure; 5- hydroxymethyl furfural; MISPE; biomarkers; Environmental chemistry; Miljökemi; miljökemi; Environmental Chemistry;

    Abstract : Human exposure to harmful compounds in the environment, from intake via food, occupational exposures or other sources, could have health implications. Exposure to reactive compounds/metabolites can be identified and quantified as hemoglobin (Hb) adducts by mass spectrometry. READ MORE

  5. 3. Optically pure lactic acid production from lignocellulosic biomass

    Author : Joana Coutinho Campos; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lactic acid; enantiomers; softwood; waste viscose; fermentation; Pediococcus acidilactici;

    Abstract : Lactic acid is a platform chemical that can be used for many applications. More recently, optically pure lactic acid—L- or D-lactic acid enantiomers—have been used for the polymerisation to poly-lactic acid (PLA). READ MORE

  6. 4. Towards sugar- and lignin-based polyesters and polyurethanes with enhanced properties

    Author : Niklas Warlin; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polyesters; Polyurethane; Bio-based Materials; HMF; Recycling; Vanillin;

    Abstract : The enormous production and consumption of fossil-based plastics has caused severe environmental challenges such as pollution of the ocean, increased CO2-emissions, and various health problems. Many ofthese concerns are intimately connected to the use of fossil fuels in the production of polymers. READ MORE

  7. 5. Farm to furan derivatives : Fractionation of agricultural residues and transformation of sugars to chemical building blocks

    Author : Sara Jonsdottir Glaser; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biorefinery; sugar beet pulp; wheat bran; agricultural residue; biomass valorisation; fractionation; bio-based platform chemicals; HMF; levulinic acid; heterogeneous catalysis; whole-cell catalysis;

    Abstract : The transition of industrial production from petrochemistry to a more sustainable economy requires the use of carbon neutral, renewable feedstock, which does not compete with food and feed supplies – by-products of farming and agro-food industry offer this possibility. With a limited range of low-value applications today coupled with the need for maximal utilisation of resources, the by-products of farming can be repurposed as feedstock for biorefineries. READ MORE