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Answer:
THE USES OF EGGS
The composition of an egg makes it the most versatile ingredient in baking. Eggs have the following uses:
•ENHANCES THE NUTRITIONAL VALUE OF
OTHER FOODS
Eggs are rich in nutrients and by adding them to vegetables, pastas, wheat and bread, the nutritionally balanced meal when an egg is added.
•RAISING AGENT
Whisked egg white includes air to form fine foam. The air bubbles expand with heat, as in sponge cakes, meringues or soufflés and thus acts as raising agent.
•BINDING SUBSTANCE AND COATING
Because eggs set when heated, they bind loose crumbly ingredients together, for example in croquettes and fillings. By dipping fritters in beaten egg before frying, the surface is sealed which prevents the food from soaking up the oil in which it is fried.
•THICKENING AGENTS
Whipped egg is used as thickening agent in pie fillings, custard sauces and baked custard. When heated for too long, however, liquid is discharged and the egg forms a sticky clot.
•EMULSIFYING AGENT
Egg yolk keeps liquid like oil in an emulsion by encircling oil particles, thus preventing them from sticking together. mayonnaise is an excellent example. The addition of vinegar or lemon juice stabilises the emulsion.