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Consider the following statements:
1. For pasteurization, the milk is heated and then suddenly chilled and stored.
2. Pasteurised milk can be consumed without boiling as it is free from harmful microbes.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. For pasteurization, the milk is ...
Statement 1: For pasteurization, the milk is heated and then suddenly chilled and stored.
Statement 2: Pasteurised milk can be consumed without boiling as it is free from harmful microbes.
Explanation:
Introduction:
Pasteurization is a process that involves heating milk to a specific temperature and then rapidly cooling it to destroy harmful microorganisms without significantly altering its taste and nutritional value. It is a widely used method for making milk safe for consumption.
Statement 1: For pasteurization, the milk is heated and then suddenly chilled and stored.
Explanation:
During the pasteurization process, milk is first heated to a specific temperature, usually between 72-75°C (161-167°F), for a specific period of time. This heating kills or inactivates most of the pathogenic bacteria, yeasts, and molds present in the milk. After heating, the milk is rapidly cooled by passing it through a plate heat exchanger or a similar device to a temperature below 10°C (50°F). This sudden cooling helps to prevent the growth of any surviving microorganisms and extends the shelf life of the milk.
Statement 2: Pasteurised milk can be consumed without boiling as it is free from harmful microbes.
Explanation:
Pasteurization effectively eliminates or reduces harmful microorganisms in milk, making it safe for consumption without the need for boiling. The sudden temperature change during pasteurization destroys most of the bacteria, yeasts, and molds that can cause diseases such as tuberculosis, brucellosis, and food poisoning. However, it is important to note that pasteurization does not completely sterilize the milk, and some harmless bacteria may still be present.
Consuming pasteurized milk without boiling is safe because the remaining microorganisms are either harmless or present in very low quantities, which are unlikely to cause illness in healthy individuals. Boiling pasteurized milk is a traditional practice in some cultures to ensure further safety, but it is not necessary from a microbiological standpoint.
Conclusion:
Both statements 1 and 2 are correct. Pasteurization involves heating and then suddenly chilling milk, while pasteurized milk can be consumed without boiling as it is free from harmful microbes.
Statement 2: Pasteurised milk can be consumed without boiling as it is free from harmful microbes.
Explanation:
Introduction:
Pasteurization is a process that involves heating milk to a specific temperature and then rapidly cooling it to destroy harmful microorganisms without significantly altering its taste and nutritional value. It is a widely used method for making milk safe for consumption.
Statement 1: For pasteurization, the milk is heated and then suddenly chilled and stored.
Explanation:
During the pasteurization process, milk is first heated to a specific temperature, usually between 72-75°C (161-167°F), for a specific period of time. This heating kills or inactivates most of the pathogenic bacteria, yeasts, and molds present in the milk. After heating, the milk is rapidly cooled by passing it through a plate heat exchanger or a similar device to a temperature below 10°C (50°F). This sudden cooling helps to prevent the growth of any surviving microorganisms and extends the shelf life of the milk.
Statement 2: Pasteurised milk can be consumed without boiling as it is free from harmful microbes.
Explanation:
Pasteurization effectively eliminates or reduces harmful microorganisms in milk, making it safe for consumption without the need for boiling. The sudden temperature change during pasteurization destroys most of the bacteria, yeasts, and molds that can cause diseases such as tuberculosis, brucellosis, and food poisoning. However, it is important to note that pasteurization does not completely sterilize the milk, and some harmless bacteria may still be present.
Consuming pasteurized milk without boiling is safe because the remaining microorganisms are either harmless or present in very low quantities, which are unlikely to cause illness in healthy individuals. Boiling pasteurized milk is a traditional practice in some cultures to ensure further safety, but it is not necessary from a microbiological standpoint.
Conclusion:
Both statements 1 and 2 are correct. Pasteurization involves heating and then suddenly chilling milk, while pasteurized milk can be consumed without boiling as it is free from harmful microbes.
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Community Answer
Consider the following statements:1. For pasteurization, the milk is ...
Option (c) is the correct answer.
Pasteurization is a process in which water and certain packaged and non-packaged foods (such as milk and fruit juice) are treated with mild heat, usually to less than 100 °C (212 °F), to eliminate pathogens and extend shelf life. The process is intended to destroy or deactivate organisms and enzymes that contribute to spoilage or risk of disease.
Statement 1 is correct. Milk is heated to about 700C for 15 to 30 seconds and then suddenly chilled and stored. By doing so, it prevents the growth of microbes.
Statement 2 is correct. Pasteurised milk can be consumed without boiling as it is free from harmful microbes. KB) The process was named after the French scientist Louis Pasteur, whose research in the 1880s demonstrated that thermal processing would inactivate unwanted microorganisms in wine.
Spoilage enzymes are also inactivated during pasteurization. Today, pasteurization is used widely in the dairy industry and other food processing industries to achieve food preservation and food safety.
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Consider the following statements:1. For pasteurization, the milk is heated and then suddenly chilled and stored.2. Pasteurised milk can be consumed without boiling as it is free from harmful microbes.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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