Tuesday, September 6, 2016

Functions of eggs in baking

No other ingredients quite compare to an egg; it is one of the nature’s nutritional miracles and its unique qualities make it indispensable in the bakeshop. Besides its nutritional value, the egg adds flavor richness and colors and serves many other functions in baked goods. Eggs perform the following functions in baking:

Structure
Like gluten protein, egg protein coagulates to give structure to baked products. It acts as thickening agent for egg generally coagulates when heated as in the baking of pudding and custard.

Binding agent
As a binding agent, since the protein in egg has the characteristics to hold together various materials when heated as in crusts, crumbs and batter.

Emulsifying of fats and liquids
Egg yolks contain natural emulsifiers that help produce smooth batter. It is considered an emulsifier of cholesterol.

Leavening
Beaten eggs incorporate air in tiny cells or bubbles. In a batter, this trapped air expands when heated and aids in leavening. When eggs are creamed along with butter they help to encapsulate even more air than otherwise possible.

Shortening action
The fat in eggs yolks acts as a shortening. This is an important function in products that are low in other fats.

Moisture
Eggs are mostly water. And the moisture in eggs allows them to act as a binding agent an help retain moisture in the product, thereby extending the shelf life.

Flavor

Nutritional value
Egg is rich in food nutrients which when mixed into the dough will supply calcium, iron, phosphorus, thiamine, riboflavin and vitamins A and D in baked products.

Color
Egg produces golden-brown finish on bread.


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