Emulsions Flashcards
1
Q
What can an emulsifier be used to do?
A
Prevent non-polar and polar liquids separations into layers
2
Q
What does an emulsion contain?
A
Small droplets of one liquid dispersed in another liquid
3
Q
How are emulsifiers used in food made?
A
By reacting edible oils with glycerol.
In the molecules formed, only one or two fatty acid groups are linked to each glycerol backbone.
Fatty acids Form ester links with the glycerol backbone
4
Q
In the emulsifier, what is hydrophobic and what is hydrophilic
A
The hydroxyl group present in the emulsifier are hydrophilic.
They dissolve in water.
The fatty acid chains are hydrophobic. They dissolve in oil.
This forms a stable emulsion
