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11 results on '"Waak, Elisabet"'

3. Metabolically improved exopolysaccharide production by Streptococcus thermophilus and its influence on the rheological properties of fermented milk

Author

Svensson, Malin, Waak, Elisabet, Svensson, Ulla, and Radstrom, Peter

Subjects
Streptococcus -- Physiological aspects, Fermentation -- Research, Microbial polysaccharides -- Research, Biological sciences
Abstract

Altered levels of enzymes in the central carbon metabolism in Streptococcus thermophilus increased the expopolysaccharide (EPS) production 3.3 times over that of the parent strain. The influence of the enhanced EPS production on the rheological properties of fermented milk is described for engineered strains of Streptococcus thermophilus that produce different levels of EPSs.

Published
2005

4. Prevalence and fingerprinting of Listeria monocytogenes strains isolated from raw whole milk in farm bulk tanks and in dairy plant receiving tanks

Author

Waak, Elisabet, Tham, Wilhelm, and Danielssin-Tham, Marie-Louise

Subjects
Milk -- Contamination, Milk, Remade, Listeria monocytogenes -- Identification and classification, Dairy bacteriology -- Research, Biological sciences
Abstract

Results show that Listeria Monocytogenes is detected in 1.0% of the 294 farm bulk tanks tested, whereas the contamination level is 19.6% in the milk from the silo receiving tanks at a Swedish dairy plant. Molecular analysis indicates that out of 65 isolates of L. monocytogenes, 16 different clonal types are identified, while the dairy silo milk showed five clonal types.

Published
2002

8. Prolonged contamination of a dairy with Listeria monocytogenes

Author

Unnerstad, Helle, Bannerman, Elisabeth, Bille, Jacques, Danielsson Tham, Marie-Louise, Waak, Elisabet, Tham, Wilhelm, Unnerstad, Helle, Bannerman, Elisabeth, Bille, Jacques, Danielsson Tham, Marie-Louise, Waak, Elisabet, and Tham, Wilhelm

Published
1996

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