Question

Find odd one out
Drying, salting, cooking,soaking with sugar

Answer 1

Answer:

cooking is odd one out since all are physical changes while it is chemical change

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Answer 2

Drying, salting, cooking,soaking with sugar odd one is cooking.

Explanation:

      Drying, salting and soaking with sugar are the methods of preservation

• 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. Sun and wind are both used for drying as well as modern applications like Bed dryers, Fluidized bed dryers, Freeze Drying, Shelf dryers, Spray drying and Commercial food dehydrators and Household oven.

• 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. Salt kills and inhibits growth of microorganisms at 20% of concentration. There are various methods of pickling like chemical pickling and fermentation pickling. In commercial pickles sodium benzoate or EDTA is added to increase shelf life.

• Sugar is used in syrup form to preserve fruits or in crystallized form if the material to be preserved is cooked in the sugar till crystallization takes place like candied peel and ginger. Another use is for glazed fruit that gets superficial coating of sugar syrup. Sugar is also used with alcohol to preserve luxury foods like fruit in brandy

• Cooking means applying heat to food. Whether the food is baked, fried, sautéed, boiled, or grilled, it's all cooking. In scientific terms, cooking is transferring energy from a heat source to the food. It is as much about the ways ​heat changes the food as it is about the heat itself.

Learn more about methods of preservation

Explain two chemical methods of preservation of food.​

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