Sökning: "lipase"

Visar resultat 26 - 30 av 225 avhandlingar innehållade ordet lipase.

1. 26. Lipid Self-Assembly and Lipase Action

   Författare :Johanna Borné; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; specific activity.; Physical chemistry; Fysikalisk kemi; vesicles; cubosomes; liquid crystalline phases; sodium oleate; oleic acid; diolein; monoolein; Oleic acid based acyl glycerols; Thermomyces lanuginosa lipase;

   Sammanfattning : In this thesis the action of the Thermomyces lanuginosa lipase (TLL) on "real" substrates, that is, lipid aggregates - vesicles, micelles, emulsions, gels and liquid crystals is discussed. Even for a pure triolein, the system becomes quite complex as the lipolytic process starts, both in terms of structure and composition, involving 5 additional components - diolein (DO), monoolein (MO), oleic acid (OA), sodium oleate (NaO) and glycerol . LÄS MER

3. 27. Chiral building blocks for synthesis of pine sawfly sex pheromones Enantioselective Lipase Catalysed Acylations and Esterifications of Primary Alcohols and Acids and Synthesis of the Sex Pheromone of the Pine Sawfly Microdiprion pallipes

   Författare :Ba-Vu Nguyen; KTH; []
   Nyckelord :lipase; Pseudomonas cepacia; Candida rugosa; enantioselective; enantiomeric ratio; primary 2-methylalcohol; substituted-methylcarboxylic acid; pine sawfly; Microdiprion pallipes; sex pheromone; 3; 7; 11-trimethyl-2-tridecanol; stereoisomer;

   Sammanfattning : This thesis describes the development of new methods for thepreparation of enantiomerically pure methyl branched alkylcompounds and their use as building blocks in the synthesis ofstereoisomerically pure pheromones of pine sawflies.The high regioselectivity, enantioselectivity and activityof lipases in organic solvent in conjunction withenvironmentally compatible reaction conditions have madelipase-catalysed synthesis an attractive alternative toconventional synthetic methods in organic chemistry. LÄS MER

4. 28. Lipase-Lipid Interactions Studied by Site-Directed Labeling and Biological Spectroscopy

   Författare :Eva Hedin; Karl Hult; Marek Brzozowski; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; thermomyces lanuginous lipase; site-directed labeling; lipase-lipid interactions; Biochemistry; Biokemi;

   Sammanfattning : This thesis describes the study of lipase–lipid interactions of the triglyceride lipase Thermomyces lanuginosus lipase, TLL, by use of site-directed chemical labeling and biological spectroscopy. Several single-cysteine variants of TLL were produced, and labeled with probes containing either an affinity-, a fluorescence- or a spin-label functionality. LÄS MER

5. 29. Lipases at interfaces

   Författare :Pedro Reis; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hydrolysis.; fat; microenvironment; depletion; surfactant; interface; Lipase; modulation; digestion; synthesis;

   Sammanfattning : Lipases are acyl hydrolases that play a key role in fat digestion by cleaving long-chain triglycerides into polar lipids. Due to an opposite polarity between the enzyme (is hydrophilic) and their substrates (are lipophilic), the lipase reaction occurs at the interface between the aqueous and the oil phases. LÄS MER

7. 30. Peocolipase and enterostatin- Functions during high-fat feeding

   Författare :Catarina Rippe; Cellulär biomekanik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine human and vertebrates ; high-fat diet; obesity; lipase; uncoupling protein; procolipase; enterostatin; Medicin människa och djur ;

   Sammanfattning : Enterostatin is a peptide formed in the stomach and intestine during the activation of pancreatic/gastric procolipase. Procolipase is a necessary cofactor for lipase. These two proteins contribute to the breakdown of dietary triglycerides in the intestine. LÄS MER