Biology, asked by harpreetramgarhia, 1 year ago

make a report of preservation of food

Answers

Answered by ranisisondia14pa8t11
0
Preservation of food
Food is preserve by salt, sugar, oil and vineger.
Using paseutrisation method, we can preserve juice, drinks etc.
Food also preserve in refrigerator for long time
Answered by Amanchal
0
--Freezing is keeping prepared food stuffs in cold storages. Potatoes can be stored in dark rooms but potato preparations need to be frozen.
--Drying is the oldest method of food preservation. This method reduces water activity which prevents bacterial growth. Drying reduces weight so foods can be carried easily
--Smoking is the process that cooks, flavours and preserves food exposing it to the smoke from burning wood.
-- Vacuum packing creates a vacuum by making bags and bottles airtight. Since there is no oxygen in the created vacuum bacteria die. Usually used for dry fruit.
--Salting and Pickling: Salting also known as curing removes moisture from foods like meat. Pickling means preserving food in brine (salt solution) or marinating in vinegar (acetic acid) and in Asia, oil is used to preserve foods.
--Lye also known as Sodium hydroxide turns food alkaline and prevents bacterial growth.
--Canning and bottling means sealing cooked food in sterile bottles and cans. 

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