Define two basic principles of food processing, Biology

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Define two basic principles of food processing?

The fundamentals of food processing, as you may recall, involves the following two basic principles:

Prepare the products fit for consumption.
Destroy or inactivate pathogens found in food.

Based on these principles, the common unit operations for food processing include:

Thermal processing: cooking, blanching, pasteurization, canning etc.
Dehydration
Cold preservation: refrigeration and freezing
Fermentation
Irradiation

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