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This is Known as Pastuerisation A process where milk is rapidly heated killing bacteria and then just as rapidly cooled again this not only protects health against bacteria but also extends the shelf life of the milk
Wiki User
∙ 16y ago
Wiki User
∙ 7y agoBacteria are only able to live in a very narrow temperature range. Too high, or to low a temperature, and they perish. This is why pasteurising milk stops it going bad too quickly.
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Is the bacteria grows best in high or low temperatures?
low temp.
What temperature kills the most bacteria?
High temperatures kill the most bacteria. These temperatures should be at least 160 degrees Fahrenheit in foods like many meats.
What is thermosphile?
A thermophile is a bacteria or other organism that thrives at relatively high temperatures.
Why are some bacteria metabolically active in hot springs?
Their enzymes have high optimal temperatures.
What do high temperatures do to lactobacillus casei?
It will bake the culture, and denature the proteins in the bacteria, turning them hard.
Some bacteria are metabolically active in hot springs because?
their enzymes have high optimal temperatures.
In fizzy drinks should carbon di oxide be added at low or high temperature?
high temperatures
Why don't all bacteria die during the cooking process?
Different species of bacteria have different sensitivity to high temperatures. Fortunately practically all species of bacteria that can cause food poisoning are killed by temperatures less than 160F and most of the rest can be killed by the high pressure canning temperatures around 240F to 250F. A few species of bacteria can actually survive and grow in the high pressure, high temperature (up to 600F), high radioactivity environment inside pressurized water nuclear reactors! Most of these species of bacteria feed on metal ions not organic material and can be a serious cause of corrosion and maintenance problems in such reactors.
What are thermophiles?
A thermophile is an organism - a type of extremophile - which thrives at relatively high temperatures, between 45 and 80 °C[1] (113 and 176 °F). Many thermophiles are archaea. Thermophilic bacteria is a extreme heat loving bacteria that is a member of the archaebacteria kingdom.
Why does the temperature of an athlete reduce when he sweats?
Sweat is a natural cooling process that is released to cool your body from high temperatures
What types of bacteria are found in harsh or extreme conditions?
Bacteria that can thrive in harsh or extreme conditions are often categorized as extremophiles. These include thermophiles that live in high temperatures, psychrophiles in cold temperatures, acidophiles in acidic environments, alkaliphiles in alkaline environments, and halophiles in high-salt environments. These bacteria have developed specialized adaptations that allow them to survive and function in such challenging conditions.
Why bacteria cannot live at very low or very high temperature?
Bacteria, like all living organisms, function by means of a complicated series of chemical reactions. Chemical reactions happen differently when there is a large difference in temperature. Low temperatures have a particular danger, which is that water freezes and it expands when it freezes, which will cause it to rupture the cell membrane of the bacterial cell. High temperatures cause all sorts of new reactions to occur which would not occur at lower temperatures, and these new reactions will also destroy a cell, even more thoroughly than low temperatures will. In less technical terms, high temperatures will cook the bacteria.
