explain any five food preservative method fast plz
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Among the oldest methods of preservation are drying, refrigeration, and fermentation. ... Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals. Advances in packaging materials have played an important role in modern food preservation.
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The dive methods of food preservation are:-
- Pickling
- Food preserved in vinegar.
- Preserves meat, vegetables due to the action of acetic acid which prevents microbial growth.
2. Salting
- Food preserved in salts such as dish, meat.
- Salt prevent microbial growth.
3. Canning
- It is a method of preserving food in which the food contents are processed and sealed in an airtight container at high temperature.
- Nicholas Appert - father of canning.
- Food products such as meat, fish, fruits, vegetables.
4. Pasteurization
- It is the process of heating milk below boiling point ( or any liquid or a food ) to kill pathogenic bacteria to make the food safe to eat.
- Stops fermentation.
- Named after Pasteur who introduced the technique.
5. Sterilisation
- To remove microbes from food .
- Milk sterilised by boiling at 100° C.
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