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Colonial variation and freeze-thaw resistance of Streptococcus thermophilus.

Author(s) : MORICE M., BRACQUART P., LINDEN G.

Type of article: Article

Summary

Two colonial variants (D12 and D31) of Streptococcus thermophilus CNRZ 368 differing in cell morphologies and chain lengths were investigated for their freeze-thawing resistance. After growth in a semi-synthetic medium, their survivabilities were significantly different. After growth in milk, the survival percentages of these variants were almost the same, and cell recovery was better, than in the semi-synthetic medium. Other differences in susceptibilities are described. These differing susceptibilities to the freeze-thawing parameters might be useful for the preparation of Streptococcus thermophilus frozen starters.

Details

  • Original title: Colonial variation and freeze-thaw resistance of Streptococcus thermophilus.
  • Record ID : 1993-0512
  • Languages: English
  • Source: Egypt. J. Dairy Sci. - vol. 75 - n. 5
  • Publication date: 1992/05
  • Document available for consultation in the library of the IIR headquarters only.

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