Search for dissertations about: "microbial media"

Showing result 1 - 5 of 27 swedish dissertations containing the words microbial media.

2. 1. Measuring Microbial Activity with an Electronic Tongue

   Author : Charlotte Söderström; Anders Jonsson; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : The electronic tongue is an electrochemical sensor that is composed of a sensor array of metal working electrodes, one Ag/ AgCl reference electrode, and an auxiliary electrode made of stainless steel. The working electrodes are non-selective with partly overlapping selectivity. READ MORE

4. 2. Inflammatory mediator response to Gram-positive and Gram-negative bacteria in vitro and in middle ear infections

   Author : Susann Skovbjerg; Göteborgs universitet; []
   Keywords : Gram-positive; Gram-negative; bacteria; cytokines; monocytes macrophages; phagocytosis; Streptococcus pneumoniae; autolysin; acute otitis media; secretory otitis media; children; probiotics;

   Abstract : Based on the structure of the cell wall, bacteria are divided into Gram-positive and Gram-negative. While the cell wall of Gram-positive bacteria is thick, the cell wall of Gram-negatives is very thin and surrounded by an outer membrane with LPS. READ MORE

5. 3. Biocatalysed redox reactions in aqueous and organic media

   Author : Mats Andersson; Bioteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PLS; coenzyme regeneration; bioelectrocatalysis; hydrogenase; chloroperoxidase; HLADH; Proteus vulgaris; Alcaligenes eutrophus; artificial electron mediator; D- S _chlorolactic acid; Biotechnology; Bioteknik;

   Abstract : This thesis deals mainly with biocatalysed methods for stereoselective reduction. D-(S)-chlorolactic acid was produced by both microbial and electromicrobial reduction of chloropyruvate using whole cells of Proteus vulgaris and an artificial electron mediator. The electron donor was formate, hydrogen gas or the cathode in an electrochemical cell. READ MORE

6. 4. Inactivation, Cell Injury and Growth of Microorganisms Exposed to Pulsed Electric Fields Using a Continuous Process

   Author : Kristina Aronsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Leuconostoc mesenteroides; PEF; Listeria innocua; cell injury; flow-through treatment chamber; membrane permeabilization; post-processing growth; microbial inactivation; pulsed electric fields; Escherichia coli; Saccharomyces cerevisiae;

   Abstract : Pulsed electric fields (PEF) is a proven technology to inactivate microorganisms under non-thermal conditions. The PEF technology has a potential as a "quality friendly" alternative to traditional methods of food preservation. READ MORE

7. 5. Transport and Fate of Escherichia coli in Unsaturated Porous Media

   Author : Emma Engström; Berit Balfors; Chin-Fu Tsang; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Contaminant transport modeling; Bacterial fate; Unsaturated zone; Retention; Straining; Escherichia coli;

   Abstract : The unsaturated zone could provide an effective barrier against pathogenic microbes entering the groundwater. Knowledge relating to microbial fate in this zone is therefore important for increased understanding of groundwater vulnerability. READ MORE