Abstract

The objective of this study was to investigate the effect of Incubation temperature (35, 37, 39, 41 and 43°C, respectively) and inoculum size (1, 3, 5, 7 and 9%, respectively) on the acidity, pH and viable counts in fermented goat milk containing L. acidophilus and Bifidobactrium bifidum by single factor test, respectively. The results showed that the optimum incubation temperature was 37°C, the acidity, pH, the viable counts of Bifidobactrium bifidum, L. acidophilus and the total viable counts were 81.8°T, 4.55, 3.60×10⁷, 3.8×10⁷ and 1.67×10⁹ cfu/mL, respectively. The optimum inoculum size was 5%, the acidity, pH, the viable counts of Bifidobactrium bifidum, L. acidophilus and the total viable counts were 98.2°T, 4.51, 5.2×10⁷, 7.7×10⁷ and 1.89 ×10⁹ cfu/mL, respectively.

Keywords:

Bifidobactrium bifidum, goat milk, incubation temperature, inoculum size, L. acidophilus,

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Competing interests

The authors have no competing interests.

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