Question

Chemical are added to food items , to prevent their spoilage

Answer 1

Chemical are added to foid items, to prevent it from Rancidity.

Rancidity:- It is the process of slow oxidation of oil & fat (which are volatile in nature) present in food materials resuting in the change of smell & taste in them.

THE METHOD TO PREVENT RANCIDITY ARE:-

i)- Keeping food materials in air tight containers.
ii)- Refrigeration of cooked food at low temperature.
iii)- Packing of foid items like potato wafers etc., in packets containing nitrogen gas instead of air.
iv)- Avoid keeping the cooked food & food materials in direct sunlight.
v)- By adding antioxidant, e.g. BHA (Butylated Hydroxy Anisole) & BHT (Butylated Hydroxy Toluene).

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Answer 2

yes some chemical are added to food to slow down the rate of rancidity in food or it is added to food to provide some added flavour it is mentioned in the packet if you noticed or the chemical like some base are added to food to give it some fllufyness chemical are also mix with food to provide it some important colour


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