Summary
Streptococcus thermophilus strains grown on skim milk produce exocellular polysaccharide, essentially composed of galactose and glucose. Small amounts of xylose, arabinose, rhamnose and mannose are identified also. A relationship exists between viscosity of the culture medium and the amount of polymer produced. However, the thickness producing trait in the strains studied is highly unstable.
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Cerning, J., Bouillanne, C., Desmazeaud, M.J. et al. Exocellular polysaccharide production byStreptococcus thermophilus . Biotechnol Lett 10, 255–260 (1988). https://doi.org/10.1007/BF01024415
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DOI: https://doi.org/10.1007/BF01024415