Explain heat preservation - method of food preservation, Biology

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Explain Heat Preservation - Method of Food Preservation?

The process of heating was used centuries before its action was understood. Food is heated up or cooked. Heat kills microorganisms, alters the protein structure and destroys enzyme activity of microorganisms in food. The examples include all forms of cooked food, pasteurization, milk sterilized by UHT (ultra high temperature), canning, etc. One of the most important modern applications of the heat principle is the pasteurization of milk.

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