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FREEZE-DRYING OF STREPTOCOCCUS THERMOPHILUS: A COMPARISON BETWEEN THE VACUUM AND THE ATMOSPHERIC METHOD.

Author(s) : WOLFF E.

Type of article: Article

Summary

FROZEN SUSPENSIONS OF STREPTOCOCCUS THERMOPHILUS WERE FREEZE-DRIED IN A VACUUM OR A FLUIDIZED ADSORBENT BED AT ATMOSPHERIC PRESSURE. OPTIMUM OPERATING CONDITIONS FOR EACH PROCESS WERE DEFINED. FOR THE DURATION OF PROCESSING AND SURVIVAL RATE OF BACTERIAL, IN EACH CASE VACUUM FREEZE-DRYING SEEMED MORE SATISFACTORY THAN ATMOSPHERIC PRESSURE FREEZE-DRYING. THE USE OF RECONSTITUTED SKIMMED MILK AS A SUSPENSION MEDIUM PROVIDES GOOD PROTECTION FOR S. THERMOPHILUS.

Details

  • Original title: FREEZE-DRYING OF STREPTOCOCCUS THERMOPHILUS: A COMPARISON BETWEEN THE VACUUM AND THE ATMOSPHERIC METHOD.
  • Record ID : 1991-2792
  • Languages: English
  • Source: Cryobiology - vol. 27 - n. 5
  • Publication date: 1990

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