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Journal of Applied Sciences
  Year: 2008 | Volume: 8 | Issue: 2 | Page No.: 379-382
DOI: 10.3923/jas.2008.379.382
 
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Growth and Survival of Some Probiotic Strains in Simulated Ice Cream Conditions

A. Homayouni, M.R. Ehsani, A. Azizi, S.H. Razavi and M.S. Yarmand

Abstract:
A Completely Randomized Design (CRD) experiment was applied in triplicates to evaluate the survival of four probiotic strains in simulated ice cream conditions. The growth and survival rate of these probiotic strains (Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidum and Bifidobacterium longum) in varying amount of sucrose (10, 15, 20 and 25%), oxygen scavenging components (0.05% L-cysteine and 0.05% L-ascorbate) and temperatures (4 and -20°C) during different periods of time (1, 2 and 3 months) were evaluated in MRS-broth medium. Optical density at 580 nm was used to measure growth. Lactobacilli strains proved to be highly resistant in comparison with Biffidobacteria strains. The viable cell number of Lactobacillus casei in different sucrose concentrations, different oxidoreduction potentials and refrigeration temperature was 1×010, 2×08 and 5×07 cfu mL-1, respectively. Growth and survival rate of Lactobacillus casei showed to be the highest.
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How to cite this article:

A. Homayouni, M.R. Ehsani, A. Azizi, S.H. Razavi and M.S. Yarmand, 2008. Growth and Survival of Some Probiotic Strains in Simulated Ice Cream Conditions. Journal of Applied Sciences, 8: 379-382.

DOI: 10.3923/jas.2008.379.382

URL: https://scialert.net/abstract/?doi=jas.2008.379.382

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