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EFFECT OF WATER ACTIVITY ON THE VIABILITY OF FREEZE-DRIED BIFIDOBACTERIA AND LACTIC ACID BACTERIA.

Author(s) : ISHIBASHI N.

Summary

VIABLE CELL COUNTS OF FREEZE-DRIED BIFIDOBACTERIUM AND LACTIC ACID BACTERIA, VARIED DEPENDENTUPON THE TEMPERATURE OF HYDRATION. HYDRATION AT 303 K (30 DEG C) WAS PREFERABLE. VIABLE CELL COUNTS DECREASED PRONOUNCEDLY IN THE INITIAL STORAGE DAYS WHILE IT DECREASED ONLY LIMITEDLY IN THE FOLLOWING PROLONGED PERIOD. LINEAR CORRELATION WAS OBSERVED WHEN THE EXPONENTIAL OF THE SURVIVED FRACTIONS WAS DETERMINED AND PLOTTED AS A FUNCTION OF 0.5 POWER OF THE PERIOD OF STORAGE. THE VALUE OF WATER ACTIVITY, WHICH CAUSED THE MOST SATISFACTORY VIABILITY OF THE FREEZE-DRIED CELLS, WAS 0.1. WHEN THE FREEZE-DRIED BACTERIAL CELLS WERE DILUTED WITH CORN STARCH, DRIED SKIM MILK OR LACTOSE, THE RESULTED VIABILITIES VARIED AS A FUNCTION OF WATER ACTIVITY.

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Pages: 1985-1

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Details

  • Original title: EFFECT OF WATER ACTIVITY ON THE VIABILITY OF FREEZE-DRIED BIFIDOBACTERIA AND LACTIC ACID BACTERIA.
  • Record ID : 1987-1208
  • Languages: English
  • Source: Fundamentals and Applications of Freeze-Drying to Biological Materials, Drugs and Foodstuffs.
  • Publication date: 1985/05/20

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