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Food Preservatives - Food Additives Preservatives

What are food preservatives:

Food preservation is the procedure of treating and handling food to prevent or greatly slow spoilage (lack of quality, edibility or nutritive value) caused or accelerated by micro-organisms.

Preservatives, just like any other food additive, can be divided into two broad categories: Natural Preservatives and Artificial Preservatives.

The roles of food preservatives:

1 To increase the shelf value of food for storage
2 To preserve the natural characteristics of food
3 To preserve the appearance of food

Chemical food preservatives are also being employed for fairly some time now. They seem to be the very best as well as the most efficient for a longer shelf life and are generally fool proof for the preservation purpose.

Examples of chemical food preservatives are:

1 Sulphites (such as sulphur dioxide)
2 Sorbates (such as sodium sorbate, potassium sorbate
3 Benzoates (such as sodium benzoate, benzoic acid)
4 Nitrites (such as sodium nitrite)

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