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Food preservation
Drying
One of the oldest orders of aliment preservation is by drying, which inflicts water system activity sufficiently to prevent or delay bacterial growth.
Refrigeration
Refrigeration preserves food by slowing depressed the growth and reproduction of micro-organisms and the action of enzymes which cause food to rot. The presentation of commercial and domestic refrigerators drastically improved the diets of many in the Western world by allowing foods such as sporty fruit, salads and dairy products to be stored safely for longer periods, particularly during heartily weather.
Freezing
Freezing is also one of the most commonly apply processes commercially and domestically for preserving a very wide grasp of food including prep ard food stuffs which would not have undeniable freezing in their unprepared state. For example, potato waffles are stored in the freezer, but potatoes themselves require only a cool glum place to ensure many months storage. Cold stores provide mountainous volume, long-term storage for strategic food stocks held in subject area of national emergency in many countries.
Vacuum packing
Vacuum-packing stores food in a vacuum environment, usually in an airtight bag or bottle. The vacuum environment strips bacteria of oxygen needed for survival, slowing spoiling.



Vacuum-packing is commonly used for storing nuts to reduce loss of flavor from oxidation.
Salt
Salting or curing draws wet from the meat through a process of osmosis. Meat is senior with salt or pelf, or a combination of the two. Nitrates and nitrites are also often used to cure meat and moderate the characteristic pink color, as well as ban of Clostridium botulinum.
Sugar
Sugar is used to preserve fruits, either in syrup with fruit such as apples, pears, peaches, apricots, plums or in crystallized form where the preserved material is cooked in sugar to the point of crystallisation and the resultant product is then stored dry. This method is used for the skins of citrus fruit...If you want to get a dependable essay, order it on our website: Orderessay



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