The effect of refrigerated storage temperature was studied at 2, 5 and 8 degrees C on the viability of probiotics in ABY (Lactobacillus acidophilus, Bifidobacterium lactis BB-12 and yogurt bacteria. Bulgaricus, i.e. Streptococcus thermophilus and Lactobacillus delbrueckii ssp. Bulgaricus) probiotic yogurt. The study was carried out during a 20-day refrigerated storage period to identify the best storage temperature(s). Also, the viability change of the probiotic micro-organisms was analysed at 5-day intervals throughout the refrigerated storage period. After 20 days, storage at 2 degrees C resulted in the highest viability of L. acidophilus, whereas for Bifidobacterium lactis the highest viability was obtained when yogurt was stored at 8 degrees C.
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Islamic Azad Univ, Sci & Res Branch, Dept Microrobiol, Tehran, Fars Province, IranIslamic Azad Univ, Sci & Res Branch, Dept Microrobiol, Tehran, Fars Province, Iran
Sarvari, F.
Mortazavian, A. M.
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Shahid Beheshti Univ Med Sci, Dept Food Technol Res, Natl Nutr & Food Technol Res Inst, Tehran, IranIslamic Azad Univ, Sci & Res Branch, Dept Microrobiol, Tehran, Fars Province, Iran
Mortazavian, A. M.
Fazeli, M. R.
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Univ Tehran Med Sci, Fac Pharm, Dept Food & Drug Control, Tehran, IranIslamic Azad Univ, Sci & Res Branch, Dept Microrobiol, Tehran, Fars Province, Iran