Search for dissertations about: "secondary metabolites"

Showing result 6 - 10 of 80 swedish dissertations containing the words secondary metabolites.

  2. 6. Antioxidant Activity of Bolivian Plant Secondary Metabolites

    Author : Patricia Mollinedo; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cytoprotection; Beta-carotene; TBARS; TEAC; ABTS; antioxidant activity; secondarymetabolites; Highland plains; plants; photoprotection; Organic chemistry; Organisk kemi;

    Abstract : Certain climatologically-adverse conditions in the basin of the Poopo Lake, located on the high plateau of the Bolivian Altiplano, have prevented the existence of a reliable agricultural system and the impact on the population of the area has been severe. These problems have been the main motivation in choosing this region for this particular study. READ MORE

  4. 7. Secondary metabolites from the saprotrophic fungus Granulobasidium vellereum

    Author : Christina Nord; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The production of secondary metabolites by the saprotrophic fungus Granulobasidium vellereum was investigated. G. vellereum is a wood decomposing basidiomycete fungus that arrives at dead trunks of fallen hard wood trees at a later stage of the decomposition process and hence need to outcompete the organisms already colonizing the site. READ MORE

  5. 8. Discovery of Secondary Metabolites from Rwandese Medicinal Plants : Isolation, Characterization and Biological Activity

    Author : Daniel Umereweneza; Máté Erdélyi; A Gogoll; Théoneste Muhizi; Yngve Stenstrøm; Uppsala universitet; []
    Keywords : Natural products; Nuclear Magnetic Resonance NMR ; Dihydrochalcones; Iridoids; Silphiperfolanols; Pyrrolizidine alkaloids PAs ; Rwandese Medicinal Plants; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : Plants have served as the principal source of medicines in different parts of the world through the ages. Herb-derived medicines have been used as decoctions, infusions, tinctures or single substance drugs. READ MORE

  6. 9. Secondary Metabolites from Bolivian Plants- Isolation and Characterization

    Author : Marcelo Davila; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Phytochemistry; Natural Prodcuts;

    Abstract : Nature has been recognized as a rich source of potentially useful chemicals. Throughout the years, phytochemical studies have led to the discovery of an enormous number of natural products, their chemical diversity is unique and many of them possess various biological activities. READ MORE

  7. 10. Elicitor-induced formation of secondary products in plant cell cultures. Production of benzophenanthridine alkaloids in Eschscholtzia californica Cham. and hydroxycinnamic acid tyramides in Nicotiana glutinosa L

    Author : Mirza Villegas; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; macarpine; chelerythrine; sanguinarine; benzophenanthridine alkaloids; Nicotiana glutinosa; Eschscholtzia californica; secondary metabolites; Key words elicitors; immobilisation; hydroxycinnamoyltyramides.; Plant biochemistry; Växtbiokemi;

    Abstract : Biotic and abiotic elicitors induce biosynthesis of secondary metabolites (phytoalexins) as a defense against pathogenic organisms in plants. The use of cell suspension cultures in combination with elicitors offer excellent experimental model systems for studies on various elicitor-induced responses of plant tissues. READ MORE