Thermal death time of Streptococcus thermophilus at 70-75 °C is *
5 min
10 min
15 min
20 min
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Thermal death time of Streptococcus thermophilus at 70-75 °C is 20 minutes.
Option (d) is correct.
Explanation:
- The thermal death time of Streptococcus thermophilus at 70-75 °C is 20 minutes.
- In the pasteurization process, the foods are preserved for a longer period of time.
- streptococcus bacteria are found in yogurt and other dairy products.
- streptococcus bacteria when heated for 25 minutes at 70 degrees celsius then they die.
- Many bacteria resist this temperature but when heated for half an hour they are killed.
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