Emulsions

Question 1

What is an emulsifier?

Answer 1

Are molecules with one part that’s attracted to water and another part to oil (or fat).

Question 2

What does an emulsifier do?

Answer 2

stops the emulsion from separating

Question 3

Do oils dissolve in water?

Answer 3

No

Question 4

What are emulsions?

Answer 4

lots of droplets of one liquid suspended into another liquid

Question 5

Is the emulsion thicker than the two substances individually?

Answer 5

Yes

Question 6

Example of an emulsion?

Answer 6

Mayonnaise - sunflower oil and vinegar

Question 7

Milk is what type of an emulsion?

Answer 7

oil in water

Question 8

Attracted to water?

Answer 8

hydrophillic

Question 9

attracted to oil?

Answer 9

hydrophobic

Question 10

What happens when you shake oil and water with an emulsifier?

Answer 10

oil forms droplets, surrounded by a coating of emulsifier. Other oil droplets are repelled by hydrophillic bit of emulsifier, while water molecules latch on. EMULSION WON’T SEPARATE.

Question 11

Cons

Answer 11

people may have allergic reactions

Question 12

pros

Answer 12

longer shell life.

make food lower in fat - good texture.