NURSING ANM AND GNM

NURSING EXAM QUESTIONS

NUTRITION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What preserves the food by lowering water content?
A
refrigeration
B
irridation
C
dehydration
D
cellopane
Explanation: 

Detailed explanation-1: -Drying is a process used for food preservation. Different drying methods and dryers are used by the food industry to remove water from foods. Removal of water reduces aw, which has a negative effect on the growth and survival of different microorganisms in foods, retarding the deterioration of foods.

Detailed explanation-2: -Most common and easy method of controlling water activity is dehydration or drying. It removes water and thus reduces water activity resulting in increased shelf life. Dried fruits, beef jerky are great examples. Also, dried spices like red chillies have a lower water activity and can be stored for a longer time.

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