Food Poisoning | Food Preservation | Microorganisms | Don't Memorise | Summary and Q&A

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November 13, 2017
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Infinity Learn NEET
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Food Poisoning | Food Preservation | Microorganisms | Don't Memorise

TL;DR

Microbes in our food release toxic secretions, turning it into poison. Food preservation is essential to inhibit microbial growth and avoid food poisoning.

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Key Insights

  • 😋 Food poisoning occurs when toxic secretions by microbes contaminate our food, causing severe infections in the digestive system.
  • 😋 Chemical methods of food preservation, such as salting, oiling, adding sugar, vinegar, or using chemicals like sodium benzoate, inhibit microbial growth.
  • 😋 Some food items can't be preserved with preservatives, so physical methods are employed for their preservation.

Transcript

what happens when we keep the leftover food on the table for the entire night when we see the container in the morning we find that it is shared by some new members yes along with the food we even find fungus growing in the container so what do we do in such cases needless to say we throw it away this is because if we consume the food shared by fun... Read More

Questions & Answers

Q: How does the presence of fungi in leftover food make it poisonous?

Fungi release toxic substances when they grow over food, rendering it unfit for consumption, and can cause a variety of health issues if consumed.

Q: What is food poisoning and how does it occur?

Food poisoning refers to the ill effect on health caused by consuming contaminated food, which contains toxic secretions by bacteria, fungi, parasites, and other pathogens.

Q: How can we prevent food from spoiling and becoming unfit for consumption?

Food can be preserved by inhibiting microbial growth, either by adding preservatives like salt, oil, and sugar, or by using chemicals like sodium benzoate and sodium metabisulfite.

Q: Are there any physical methods of food preservation for consumables like milk, fruits, and vegetables?

Consumables like milk, fruits, and vegetables cannot be preserved with chemical treatments, so they require well-designed physical methods of preservation.

Summary & Key Takeaways

  • Food gets contaminated due to toxic secretions by bacteria, fungi, parasites, and other pathogens present in it, leading to food poisoning.

  • Chemical methods of food preservation include adding commodities like salt, oil, vinegar, and sugar to inhibit microbial growth.

  • Certain chemicals like sodium benzoate and sodium metabisulfite can be added to squashes, fruit juices, and jams to prevent the growth of microbes.

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