Food preservation quiz

What is the water and lipid soluble gas that inhibits growth of bacteria and molds?

• O2

• CO2

• N2

• H2

This gas is added in MAP to prevent pack collapse

• O2

• CO2

• N2

• H2

Drying by subdividing food as a thin film is done in which type of equipment?

• Cabinet dryer

• Freeze dryer

• Spray dryer

• Vacuum dryer

Brewed coffee and high quality juices are dried by ___________

• Cabinet drying

• Freeze drying

• Spray drying

• Vacuum drying

This happens to food subjected to very low temperature, when moisture leaves the surface of the food, creating microscopic cavities.

• Recrystallization

• Freezer burn

• Evaporation

• Drying

Freezing does the following EXCEPT

• lowers the chemical reaction rates

• minimizes physico-chemical changes

• inactivates enzymes

• inhibits growth of most bacteria

Cutting of fruits and vegetables into cubes

• Grinding

• Cubing

• Dicing

• Julienne

This method is used for salt from seawater and sugar from sugarcane juice

• Crystallization

• Solvent extraction

• Steam distillation

• Winnowing

The oil from soybean is separated by

• Crystallization

• Solvent Extraction

• Steam distillation

• Homogenization

This method uses CO2 at high pressure to extract or separate food components

• Extrusion

• Solvent Extraction

• Steam Distillation

• Supercritical fluid extraction