Question

define rancidity what kind of substance are used to prevent explain any two way to prevent rancidity?

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Answer 1

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Rancidity:-

Oxidation in nature damages many things including fatty foods and oils. When the food materials prepared in fast and oils are kept for a longer period of time, they starts giving unpleasant smell due to oxidation, this is known as Rancidity.

• With due time, many food materials containing fats and oils get oxidised in the presence of oxygen in the atmosphere.

• It is also known as Aerial oxidation

• This leads to unpleasant smell and taste which is known as Rancidity.

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Substances that prevents:-

• It is obvious that, we will use antioxidants to prevent the oxidation of these food materials

• The antioxidants are actually reducing agents.

• When they are added to the food materials, they don't get oxidises and hence they do not turn rancid. So, it remains fresh for longer time.

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Ways to prevent Rancidity:-

• By adding antioxidants.

• By packaging in Nitrogen gas(N2).

• By keeping food in refrigerator.

• By storing in air-tight containers.

• By keeping away from light.

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