Search for dissertations about: "Hafnia alvei"
Found 4 swedish dissertations containing the words Hafnia alvei.
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1. Structural studies of some bacterial polysaccharides and extension of a method for lipid A cleavage
Abstract : The focus of the work presented in this thesis has been to study the structures of the capsular polysaccharide from Serratia marcescens O14:K12, and the O-antigen polysaccharides from Hafnia alvei strain 10457 and Vibrio cholerae serogroup 037. Nuclear magnetic resonance (NMR) spectroscopy was the primary technique employed. S. READ MORE
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2. Structures of some bacterial polysaccharides with focus on pneumococcal polysaccharides and their associated C-polysaccharide
Abstract : This thesis describes the chemical structures of the capsular polysaccharides from Streptococcus pneumoniae types 18B, 32F, and 32A. The structure of the pneumococcal common antigen, C-polysaccharide, from a non-capsulated pneumococcal strain, CSR SCS2, is described and the structure of the C-polysaccharide associated with pneumococcal types 18B, 32F, and 32A. READ MORE
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3. Characterization of Aeromonas, Enterobacteriaceae, Pseudomonas, Bacillus and Lactobacillus spontaneously growing to high numbers in milk, minced meat, fish or cheese
Abstract : The spoilage flora of refrigerated raw and pasteurized milk was classified and identified by numerical phenotypic analysis. Isolations of bacteria were made at a defined spoilage stage, when the total aerobic count was 106-107 cfu per ml. The secondary flora of ripened Swedish and Norwegian cheeses was investigated by numerical analysis. READ MORE
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4. Characterisation of Food Associated Bacteria by DNA based Methods, with Special Reference to Enterobacteriaceae
Abstract : The presence of genes in food, encoding some virulence factors, was studied by PCR, and species of Enterobacteriaceae, associated with food, were studied by the DNA-based methods of TTGE, ribotyping and sequencing. The flora of fresh and chill-stored pork were analysed by a culture-independent approach, using specific amplification of 16S rRNA genes followed by cloning and sequencing. READ MORE