Essay On Food Preservation

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Food is a basic need to every human being. For centuries human kind have been using the process of food preservation to store food for future use. Preservation is the process that saves organic substances from decay. The process of food preservation has evolved over time, however they all follow the same basic concept.

PRINCIPLES OF PRESERVATION(1)
During the process of preservation food should not be damaged. There are three principles of food preservation:
Removal of micro-organisms: this can be done by using acids, sugar or salts, radiation, adding chemicals, smoke, changing the oxygen concentration, increasing or lowering the temperature, or drying.
Inactivating enzymes: Control the enzymes by increasing the temperature, removing oxygen, using acids, or adding chemicals.
3) Removal of insects, worms, and rats: By using Protective packaging and sanitation.
EARLIER WAYS OF FOOD PRESERVATION(2)
In earlier days, in frozen climates, ice was used to preserve food. The heat from the sun was also used to preserve food through drying. Each culture used some of the following basic pr...

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