Which of the following statements are true and which are false? Evaporation is used to decrease...

Which of the following statements are true and which are false?

Evaporation is used to decrease the weight and volume of a liquid product.
Concentration of a liquid food increases the shelf life of the food since it decreases the water activity.
Falling film evaporators are not suitable for heat sensitive products.
Agitated film evaporators are suitable for viscous liquids.
Fruit juices are concentrated in falling film evaporators.
Gelatin is concentrated in agitated film evaporators.
Tomato juice is concentrated in forced-circulation evaporators.
Falling film tube evaporators are more compact than plate evaporators.
Natural circulation evaporators are suitable for heat sensitive liquid foods.
Forced circulation evaporators are suitable for viscous liquid foods.

Expert Solution

Evaporation is used to decrease the weight and volume of a liquid product. It is a True Statement as evaporation is used for the concentration of liquid surface by a decrease in volume and weight.

The concentration of liquid food increases the shelf life of the food since it decreases the water activity. It is a true statement as lower water activity leads to a good shelf life of the food.

Falling film evaporators are not suitable for heat sensitive products. True

Agitated film evaporators are suitable for viscous liquids. True

Fruit juices are concentrated in falling film evaporators. True

Gelatin is concentrated in agitated film evaporators. True

Tomato juice is concentrated in forced-circulation evaporators. True

Falling film tube evaporators are more compact than plate evaporators. True as Falling Film Evaporator requires less floor space area.

Natural circulation evaporators are suitable for heat sensitive liquid foods. False as these evaporators have large liquid holdup in them.

Forced circulation evaporators are suitable for viscous liquid foods. True

Amanda K answered 2 years ago

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