Sökning: "Phenols"

Visar resultat 1 - 5 av 38 uppsatser innehållade ordet Phenols.

  1. 1. Winter wheat exudates : Improving wheats resilience to drought

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Freja Haverland; [2024]
    Nyckelord :drought; PGPR; exudates; agriculture; food security;

    Sammanfattning : Wheat (Triticum aestivum) is a crop that dominates the diets of about 35% of the world's human population. But wheat yields can be severely affected by drought. Therefore, in this experiment, root exudation of winter wheat was compared to find out how exudation changes during drought stress. LÄS MER

  3. 2. Mildly nutritious or mild and nutritious : a study on the effect of low phenolic content in wheat and rye kernels and its sensory effect on whole grain breads

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Julia Kullberg; [2023]
    Nyckelord :White rye; white wheat; low phenolic flour;

    Sammanfattning : Recent studies on the dietary habits of the Swedish population show that only 30% reaches the recommended levels of dietary fibres. As a high fiber intake is associated with health benefits and a decrease in the risk of developing lifestyle disease, there may be a need for new types of fibre and wholegrain products. LÄS MER

  4. 3. EFFECT OF ENDOCRINE DISRUPTING MIXTURES AND CHEMICALS ON THE OXYGEN CONSUMPTION RATE OF ZEBRAFISH LARVAE

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Lieke van Iersel; [2022-08-08]
    Nyckelord :oxygen consumption; zebrafish larvae; respirometry; endocrine disrupting chemicals; mixture toxicity;

    Sammanfattning : Chemicals affecting the endocrine system, so called endocrine disrupting chemicals (EDC’s), have been steadily increasing in the environment over the last 40 years. EDCs are harmful chemicals since they can act through multiple endocrine pathways, contain a wide spectrum of health effects that can be very persistent and can cause effects already at a low doses. LÄS MER

  5. 4. Generell metod för analys av pesticider med HS-SPME i kombination med GC-MS : Möjligheten att identifiera pesticider i känd lösning och i förgiftningsfall

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Samuel Eliasson Heino; [2022]
    Nyckelord :Gas chromatography-mass spectrometry; Pesticides; Intoxication; Limit of detection; headspace-SPME; EPA 8151; Detection; Derivatization; Separation;

    Sammanfattning : This study focuses on a general method that has been developed for the identification of both polar- and nonpolar pesticidespolar pesticides in a known solution from EPA 8151 Herbicide acid mix by Merck including the ordered non-polar pesticide Prosulfocarb. The EPA-solution contains 16 analytes that has been completely identified when derivatized and spiked in acetone. LÄS MER

  7. 5. Catalytic synthesis of benign bisphenols

    Kandidat-uppsats, KTH/Kemi

    Författare :Victoria Chu; Emma Lundqvist; Hampus Hagelin; [2022]
    Nyckelord :Bisphenols; Vanillyl alcohol; Friedel-Crafts alkylation; Lewis acid catalysis; Sustainability; Bisfenoler; Vanillylalkohol; Friedel-Crafts alkylering; Lewissyra-katalys; Hållbarhet;

    Sammanfattning : This study analyzes the reactivity and selectivity of Friedel-Crafts alkylations using benzylic alcohols and phenols in the presence of a Lewis acid, to synthesize methoxylated bisphenols as a benign alternative to BPA. The degree of methoxylation on the electrophile appears to affect the yield of the reaction while the degree of methoxylation on the nucleophile appears to affect the selectivity. LÄS MER