Viability of bacterial dried cells
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United States of America Patent
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Mar 17, 1998
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N/A
app pub date -
May 12, 1995
filing date -
Jul 19, 1993
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Expired
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Abstract
The viability of bacterial cells after drying is improved by aging the culture in the stationary phase for periods of around six hours prior to drying. Further improvement may be obtained by culturing in a nitrogen deficient medium. The bacterial cells accumulate trehalose to protect the cells against drying out and other cell damage and the medium is further defined as having a higher than normal osmotic potential.
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