Sökning: "nutrient bioavailability"

Visar resultat 21 - 23 av 23 avhandlingar innehållade orden nutrient bioavailability.

  1. 21. Molecular perspectives on goethite dissolution in the presence of oxalate and desferrioxamine-B

    Författare :Anna A. Simanova; John Loring; Owen Duckworth; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi;

    Sammanfattning : Iron, an essential nutrient, is primarily present in soils in the form of iron-bearing minerals characterized with low solubilities. Under iron deficient conditions, some plants and microorganisms exude a mixture of iron-complexing agents, including carboxylates and siderophores, that can cause minerals to dissolve and increase iron solubility. LÄS MER

  3. 22. Hydrolases as Catalysts for Green Chemistry and Industrial Applications - Esterase, Lipase and Phytase

    Författare :Yasser Gaber; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HPLC-EAT; sustainable environment; mutation; metallo-enzyme; phytate; b-propeller; biodegraqdable; metrics; green chemistry; Novozym 435; CalB; solvent-free; kinetic resolution; Biocatalysis; rational design; PLE; esterase; clopidogrel; enantioselectivity;

    Sammanfattning : The use of enzymes in industrial applications has been recognised for providing clean processes with minimal impact on the environment. This thesis presents studies on engineering of enzymes and enzyme-based processes in the light of green chemistry and environmental sustainability, and focuses on three hydrolases: esterase, lipase and phytase. LÄS MER

  4. 23. Thermostable Phytase from a Bacillus sp.: Heterologous Production, Mutation, Characterization and Assay Development

    Författare :Tran Thi Thuy; Bioteknik; []
    Nyckelord :ß-propeller phytase; recombinant protein; site-directed mutagenesis; phytate;

    Sammanfattning : Phytase is an important enzyme in the food/feed industry. It catalyzes the hydrolysis of phytate, an anti-nutrient compound present in cereals and grains, to release orthophosphate and myo-inositol-6-phosphate with lower degrees of phosphorylation. LÄS MER