Question

What temperature is considered as danger zone in which bacteria can grow quickly?a. $5^{\circ} \mathrm{C}-60^{\circ} \mathrm{C}$b. Above $60^{\circ} \mathrm{C}$c. Below $5^{\circ} \mathrm{C}$d. $10^{\circ} \mathrm{C}-65^{\circ} \mathrm{C}$

Answer 1

Explanation:

it mostly grows at 5°c to 60°c

Answer 2

The temperature which is considered as DANGER ZONE in which bacteria can grow quickly is 5°C - 60°C (option a.)

• The DANGER ZONE is defined as the temperature range in which growth of most disease-causing bacteria is maximum. For most bacteria, this range is 5°C - 60°C, with their numbers doubling in almost as little as 20 minutes.

• This range is most suitable for bacterial growth because below 5°C, growth slows down or sometimes it may even stop completely.
• Conversely, above 60°C, the proteins in bacteria start getting denatured and break down. If high temperatures are maintained for long periods of time, the bacteria will eventually die.

• The knowledge of danger zone is most important in applications of food safety. By being informed of the relationship between time, temperature and bacterial growth we can limit the growth of food-borne disease-causing bacteria.

Hence option a. 5°C - 60°C is the correct option.