Sökning: "Karin Z"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Karin Z.

1. 1. Affibodies

   Författare :Karin Nord; KTH; []
   Nyckelord :;

   Sammanfattning : The introduction of recombinant DNA technology-based methodsfor the overproduction of either wild type or engineeredproteins in various host cells has had an enormous impact onthe availability of proteins for various therapeutic,diagnostic and research applications, which also has creatednew demands on efficient production and purification methods toprovide the desired material. Affinity chromatography hasproven to be an outstanding technique to obtain a single-stepincrease in purity and concentration. LÄS MER

3. 2. Validation of mild cooking processes with target of Listeria monocytogenes inactivation to ensure food safety

   Författare :Sonja Karin Grönqvist; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis investigates the use of Time Temperature Integrators (TTIs) to validate industrial cooking processes aimed to achieve a 6 logarithmic inactivation of Listeria monocytogenes, equal to a heat load of 2 min at 70 °C (P707.5 = 2) . To produce microbiological TTIs, live cells of L. monocytogenes were crossbound in alginate beads. LÄS MER

4. 3. The Scents of Nature : Identification and Synthesis of Bioactive Compounds Used in Insect Communication

   Författare :Erika Wallin; Erik Hedenström; Anna-Karin Borg-Karlson; Mittuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semiochemicals; Sex pheromone; Bicyclus spp; Euglossa spp; Cimex hemipterus; Cimex lectularius; Kladothrips nicolsoni; Kladothrips rugosus; Drosophila melanogaster;

   Sammanfattning : Pest insects cause great financial losses in the forest and food industry every year. To fight these pests industries have used insecticides, which are sometimes harmful to nature and humans. LÄS MER

5. 4. Chemical defence in Norway spruce

   Författare :Marie Danielsson; Anna-Karin Borg-Karlson; Anders Backlund; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; volatiles; terpenes; green leaf volatiles; stilbenes; stress response; nepetalactone; Picea abies; Hylobius abietis; Cinara pilicornis; Oligonychus ununguis; Heterobasidion annosum; Chemistry; Kemi;

   Sammanfattning : Norway spruce (Picea abies) responds to stress by biosynthesis of chemical substances, which can deter invading insects or pathogens. Some of these substances are volatile and can be emitted to the surroundings while others are accumulated within the tree. LÄS MER

7. 5. Stress Related Emissions of Norway Spruce Plants

   Författare :Marie Pettersson; Anna-Karin Borg-Karlson; Torkel Berglund; Åsa Emmer; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; volatiles; terpenes; green leaf volatiles; stress response; nepetalactone; SPME; Picea abies; Hylobius abietis; Cinara pillicornis; Chemistry; Kemi;

   Sammanfattning : The interactions between plants and insects are mediated by volatile molecules. Plants respond to stress by biosynthesis of chemical substances which can deter invading insects or pathogens. Some of these substances are volatile and are emitted to the surroundings and may attract or repel insects. LÄS MER