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Vinegar are what type of food preservatives?
A) Irradiation
B) Dehydration
C) Pasteurization
D) Natural
E) Chemical

Answer
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Hint: Natural preservatives are ingredients that are found in nature and can without artificial processing or synthesis with other substances prevent products from premature spoiling. These substances can be safe, effective alternatives to controversial synthesis preservatives such as parabens.

Complete answer:
The term preservation of food means to conserve food for a longer period so that it can be used whenever required in future. additives are used, to protect the food from attack microbes, climate, temperature etc.

Vinegar is made from the fermentation of sugar and water solutions and it also acts as an effective natural preservative. The acetic acid which is present inside the vinegar helps in killing the microbes and prevents spoilage of food. Adding common vinegar not just prevents the food from spoilage but also enhances the taste of food.

Irradiation: By this process, the food is exposed to radiation. It reduces microbes and insects and thereby increases the shelf life. Vegetables and fruits are preserved by this method.

Dehydration: It is the process of removing water from food items. The grains are sun-dried so as to remove moisture and increase shelf life.

Pasteurization: It is the process of heating and then sudden cooling. It leads to the killing of microbes. For example, milk is pasteurised for increasing shelf life.

Chemical: Chemical preservatives are used to increase the shelf life of food. Example benzoate.

So, the correct answer is option ‘D’ i.e, natural preservative.

Note: Manufactures use natural preservatives to extend the shelf life of their products, reduce spoilage and retain smell or taste. After all, the goods need to survive the shipping process and they might be sitting in a store or warehouse for a while before someone buys them. These natural preservatives are most popular in natural brands of cosmetic products. For example, makeup and moisturizers have natural preservatives. These are also very common in food products such as jelly and peanuts.
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