Linked from
The 11 pages that link to Emulsifier, each with the reason it gives.
MayonnaiseNarrower topic: Egg-yolk proteins and phospholipids act as emulsifiers in mayonnaise.
Ice creamRelated: Emulsifiers help manage fat structure and air incorporation during churning.
VinaigretteRelated: Mustard and other emulsifiers can slow the separation of oil and vinegar.
Peanut butterRelated: Added emulsifiers can help keep peanut oil distributed through the spread.