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Viability of two freeze-dried strains of Bifidobacterium and of commercial preparations at various temperatures during prolonged storage.

Author(s) : BRUNO F. A., SHAH N. P.

Type of article: Article

Summary

Viability of Bifidobacteria in freeze-dried probiotic products at various temperatures during prolonged storage was assessed. Bifidobacterium longum 1941 and B. longum 536 were freeze-dried and capsules were manufactured. Five commercial probiotic capsule products were also tested. The capsules were stored at -18 °C, 4 °C, and 20 °C. Cell counts were enumerated at 37 °C for 72 h under anaerobic conditions at 0, 1, 2, 5, and 8 mo (commercial capsules) and at 0, 1, 2, 5, 8, 11, 14, 17, and 20 mo (laboratory capsules). Storage at 20 °C showed the greatest decline in the viability of bifidobacteria, whereas that at -18 °C showed the least decrease.

Details

  • Original title: Viability of two freeze-dried strains of Bifidobacterium and of commercial preparations at various temperatures during prolonged storage.
  • Record ID : 2004-1435
  • Languages: English
  • Source: Ital. J. Food Sci. - vol. 68 - n. 7
  • Publication date: 2003/09
  • Document available for consultation in the library of the IIR headquarters only.

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