Requirement for phosphoglucomutase in exopolysaccharide biosynthesis in glucose- and lactose-utilizing Streptococcus thermophilus

Article Abstract:

Phosphoglucomutase is not needed in lactose-utilizing Streptococcus thermophilus because the bacterium uses the galactose moiety of lactose to generate exopolysaccharides (EPS). This indicates that the bacterium uses the Leloir enzymes for EPS synthesis.

Microbial metabolism

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Physiological role of beta-phosphoglucomutase in Lactococcus lactis

Article Abstract:

Lactococcus lactis appears to have a different metabolic pathway for trehalose than for maltose. This was the conclusion of researchers who analyzed catabolism and anabolism in a beta-phosphoglucomutase mutant.

Microbial enzymes, Lactococcus

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

Article 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.

Science & research, Physiological aspects, Fermentation

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