Search for dissertations about: "autoxidation"

Showing result 11 - 15 of 16 swedish dissertations containing the word autoxidation.

2. 11. Dopachrome and aminochrome, the oxidized metabolites of dopa and dopamine : studies on the molecular mechanisms underlying their reduction and conjugation with glutathione

   Author : Sofia Baez; Francisco Solano Munoz; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; biokemi; Biochemistry;

   Abstract : Dopamine, like other catecholamines can be oxidized to the corresponding ortho-quinone, which undergoes cyclization of its amino chain to cyclized dopamine ortho-quinone (aminochrome). Both o-quinones are toxic metabolites that may contribute to neurotoxic effects of these catecholamines. READ MORE

4. 12. Analysis of ginesenosides

   Author : Jian-fang Cui; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : New analytical methods were developed in order to evaluate commercial ginseng preparations and to allow studies on urinary excretion of ginsenosides in humans after consumption of ginseng preparations. An optimized alkaline procedure was developed for cleavage of the glycosidic bonds that was clearly superior to previously reported hydrolysis procedures of ginsenosides because of (a) completeness of the reaction and (b) absence of the artifacts found in acid hydrolysis. READ MORE

5. 13. Limonene Hydroperoxides in Allergic Contact Dermatitis. Radical Formation, Sensitizing Capacity and Immunogenic Complex Formation

   Author : Staffan Johansson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; allergic contact dermatitis; contact allergy; immunogenic complex; limonene hydroperoxides; local lymph node assay; patch testing; radicals; sensitizing capacity; skin;

   Abstract : Contact allergy to fragrance compounds is an increasing problem in the western countries today. R-Limonene is one of the most common fragrance compounds; it is used in hygiene products and cosmetics as well as in industrial products such as hand cleansers and degreasers. READ MORE

6. 14. Bioelectronic Approaches for On-Demand Generation of Reactive Oxygen Species

   Author : Eva Miglbauer; Eric Glowacki; Oliya Abdullaeva; Lars Peter Nielsen; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; ROS; ORR; WOR; Fenton reaction; Electrolysis; Bioelectronics;

   Abstract : Reactive oxygen species (ROS) are an integral part of our lives. They perform essential functions in our biology and are, due to their high oxidative power, key molecules in advanced oxidation processes in industrial applications such as treatment of wastewater. READ MORE

7. 15. Engineering of Human Fetal Hemoglobin

   Author : Karin Kettisen; Tillämpad biokemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; fetal hemoglobin; protein engineering; recombinant protein production; protein purification; chromatography; oxygen carrier; redox reactions; net surface charge; DNA cleavage;

   Abstract : In blood, the oxygen-transporting protein hemoglobin (Hb) governs the oxygenation of cells and tissues. Naturally, this protein has claimed a place in the center of the research field of artificial oxygen therapeutics. READ MORE