Understanding Alioli and Emulsions

What is the main reason for adding egg yolk to the modern alioli recipe?

• To make it more traditional

• To reduce the amount of garlic used

• To enhance the flavor

• To increase the oil content

What is the purpose of adding a little hot water during the alioli preparation?

• To add flavor

• To help the garlic dissolve

• To cool down the mixture

• To aid in the emulsification process

What happens when you mix olive oil and water?

• They form an emulsion with oil drops in water

• The water evaporates

• The oil dissolves in the water

• They form a stable solution

Why do emulsions tend to phase separate over time?

• Because the oil evaporates

• Because the water dissolves the oil

• Because the temperature changes

• Because the oil and water are immiscible

What is the dispersed phase in an oil-in-water emulsion?

• Salt

• Oil

• Air

• Water

What is the continuous phase in an oil-in-water emulsion?

• Water

• Air

• Oil

• Salt

What is the role of a surfactant in an emulsion?

• To increase the acidity

• To stabilize the interface between fluids

• To dissolve the oil

• To evaporate the water

What characteristic of surfactants allows them to stabilize emulsions?

• Their amphiphilic nature

• Their ability to dissolve in oil

• Their high acidity

• Their hydrophobic nature

What is a micelle in the context of emulsions?

• A type of salt crystal

• An aggregate of surfactant molecules

• A water molecule

• A type of oil droplet

How does an egg yolk function in an emulsion?

• As a surfactant

• As a preservative

• As a flavor enhancer

• As a thickening agent