Emulsions Flashcards
1
Q
what are emulsions in?
A
- foods
- cosmetics
- paint
2
Q
what can emulsion be made from?
A
oil and water
3
Q
does oil dissolve in water?
A
no
4
Q
how is emulsion made?
A
mixing oil and water.
5
Q
what are emulsions made up of?
A
droplets from one liquid on another.
- oil on water emulsion or water on oil emulsion
6
Q
the more oil there is in an oil in water emulsion the more…?
A
thicker it is
7
Q
what do some foods contain to help oil and water mix?
A
emulsifiers
8
Q
what are emulsifiers & what do they do?
A
- molecules with on part part attached to water, and the other part attached to oil/fat
- stop emulsions from separating
9
Q
what is the bit of the molecule attached to water called?
A
hydrophilic
10
Q
what is the part of the molecule attached to oil called?
A
hydrophobic
11
Q
what does the hydrophobic attach to?
A
oil molecules
12
Q
what does the hydrophilic attach to?
A
water molecules
13
Q
whats the down side to emulsifiers?
A
some people are allergic to them
