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Protective effect of ultrafiltered retentate powder on stability of freeze-dried cultures of bifidobacteria during storage.

Author(s) : BLANCHETTE L., ROY D., GAUTHIER S. F.

Type of article: Article

Summary

Suspending media containing 10% skim milk and various amounts of ultrafiltered retentate powder to replace lactose as protective agent were used for the preparation of freeze-dried cultures of Bifidobacterium infantis. After freeze-drying, losses in viability of B infantis were between 70 and 85%. Freeze-dried cultures of Bifidobacteria were kept for 12 months at 4 deg C under vacuum. Losses in viability varied from 0.8 to 4.9% after 12 months' storage. Results indicate that retentate powder added to skim milk could act as a protective agent during long-term storage of freeze-dried cultures.

Details

  • Original title: Protective effect of ultrafiltered retentate powder on stability of freeze-dried cultures of bifidobacteria during storage.
  • Record ID : 1997-0565
  • Languages: English
  • Source: Milchwissenschaft - vol. 50 - n. 7
  • Publication date: 1995
  • Document available for consultation in the library of the IIR headquarters only.

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