Name: Understanding the Spread & Symptoms of Chickenpox
Uploaded: 2019-07-19
Duration: 4 min 21 s
Description: Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). It can cause an itchy, blister-like rash among other symptoms. Take a look at its symptoms and spread in this video.

Question

Write how the following methods of preservation work. Also, add two examples of foods that can be preserved by each of these methods.

Method	How it works	Examples (of food preserved)
Pickling
Ozone treatment
Drying
Adding preservatives
Canning
Vacuum packing
Freezing
Radiation
Salting

Accepted Answer

Food preservation involves treating and handling food in a way that slows down or prevents spoilage, which is typically caused or accelerated by microorganisms. Preservation methods aim to inhibit the growth of bacteria, fungi, and other microorganisms that can cause food to spoil. Preservation techniques can help to retard the oxidation of fats, which can lead to the development of rancidity in food products.

Method How it works Examples (of food preserved)

Pickling Food is submerged in an acidic solution to inhibit microbial growth. Pickled cucumbers, mangoes, lemons, etc.

Ozone treatment Exposure to ozone gas destroys harmful microorganisms. Fresh fruits and vegetables, seafood, etc.

Drying Water is removed, preventing bacterial and fungal growth. Pulses, dry fruits, etc.

Adding preservatives Chemical additives inhibit microbial growth and preserve food. Canned vegetables, jams, jellies, etc.

Canning Food is heat processed and sealed in airtight containers. Tomato sauce, milk, etc.

Method How is woks Examples (of food preserved)

Vacuum packing Air is removed from the packaging to prevent spoilage. Vacuum-sealed meats, coffee beans, etc.

Freezing Low temperatures resists microbial activity and enzyme reactions. Fruits, vegetables, etc.

Radiation Exposure to radiation kills bacteria and parasites. Canned meat, etc.

Salting High salt concentration inhibits microbial growth and dehydration. Meat, fish, etc.

Write how the following methods of preservation work. Also, add two examples of foods that can be preserved by each of these methods.

Method How it works Examples (of food preserved)

Pickling

Ozone treatment

Drying

Adding preservatives

Canning

Vacuum packing

Freezing

Radiation

Salting

Important Questions on Microorganisms: Friends or Foes

Learn and Prepare for any exam you want !

Write how the following methods of preservation work. Also, add two examples of foods that can be preserved by each of these methods. Method How it works Examples (of food preserved) Pickling Ozone treatment Drying Adding preservatives Canning Vacuum packing Freezing Radiation Salting

Important Questions on Microorganisms: Friends or Foes

Learn and Prepare for any exam you want !

Write how the following methods of preservation work. Also, add two examples of foods that can be preserved by each of these methods.

Method How it works Examples (of food preserved)

Pickling

Ozone treatment

Drying

Adding preservatives

Canning

Vacuum packing

Freezing

Radiation

Salting