Difference Between Egg white and Yolk

Egg White Nutrition: Calories and Vitamins in Egg Whites.

Egg whites are different from egg yolks because of their unique composition. Here are some nutritional facts about egg whites.

• Eggwhites are low in calories. The egg white makes up about 25% of an egg’s volume. It contains almost no fat and only 25% of the egg’s calories. Egg whites can be used to lose weight and offer many health benefits over whole eggs.
• Eggwhites are high-protein. Egg whites have more protein than an egg’s total protein. In fact, a single large egg can pack nearly 4 grams of protein. Egg white is considered a complete protein. This means it contains all nine essential amino acid.
• Eggwhites are low in Vitamin. Egg whites are not a good source for vitamins. A serving of egg whites contains about 12% of the daily recommended nutritional value for riboflavin (or vitamin B2), which is an important vitamin that aids in energy production and cell growth.

Egg Yolk Nutrition: Calories and Vitamins for Egg Yolks

Egg yolks are a different animal than egg whites in that they have their own nutritional benefits and drawbacks. Here are some facts about egg yolks.

• Egg yolks contain high amounts of vitamins. The egg yolk contains the highest amount of vitamins and nutrients. This includes calcium, phosphorus and zinc. Egg yolks are rich in fat-soluble carotenoids such as lutein, zeaxanthin and lutein, which protect your eyes and lower the risk of developing cataracts.
• High in fat , egg yolks. Nearly all of an egg’s total fat is found in the yolk. One egg yolk can contain approximately 4.5-6 grams. This is less than 10 percent of the daily recommended amount. This is a lot of healthy fats, namely omega-3 fatty acid, which can’t be produced by the body and must be taken in through diet. About 1.6 grams of the rest are saturated fats.
• High levels of cholesterol are found in egg yolks. Yolks have the highest levels (about 213 mg per yolk) of dietary cholesterol. This characteristic was once thought to increase your risk of developing cardiovascular disease. Recent studies have shown that high levels of dietary cholesterol (especially in eggs) do not necessarily indicate high cholesterol or an increased risk of developing heart disease.

Everything You Need to Know About Egg Whites: How To Cook With Egg Whites

There are many recipes that only require egg whites, including healthy scrambled eggs or omelets. Egg whites are used to give baked goods a light, fluffy texture.

• Meringue – Other than sugar, egg whites make up the main ingredient of French meringue. This is in addition to its cousins, Italian and Swiss meringue. You can use the “stiff peak” of egg white meringue to top a lemon meringue cake.
• Souffle – While both the yolk and the whites of this eggy dish are important, it is the egg whites that give souffle its airy texture.
• Egg wash: A egg wash made of whites can give baked goods a shiny finish or help dry ingredients stick to proteins. Gordon Ramsay’s sesame crusted Tuna recipe.
• Macaroons and Macarons : Wiped egg whites are used to bind ingredients and give baked goods gluten-free texture. This includes coconut macaroons as well as French macarons.
• Pie Filling : This Key lime pie recipe’s filling is light and mousse-like when egg whites are combined with sugar, egg yolks, lime juice, salt, and water.

Everything You Need to Know About Egg Yolks. How to Cook with Egg Yolks

In many recipes, yolks can be separated from whites and used as an ingredient or mixed with whole eggs. Egg yolks are often used to add richness and density to eggs. They also act as an emulsifier by combining fat, water and acid to create a stable mixture.

• Pasta Dough – In Chef Thomas Keller’s recipe for homemade cavatelli the combination of whole eggs with egg yolks produces delicate, yellow noodles that have a traditional Italian taste and texture.
• Mayonnaise – Here egg yolks combine lemon juice, salt and oil to create one of the most important sauces in all of cooking. Mayonnaise is delicious on its own or as a base for salad dressings.
• Hollandaise and Bearnaise are two classic French sauces that require egg yolks to be emulsified with butter, acid and herbs. They can be paired well with a wide range of meats and vegetables.
• Egg wash: A yolk-based egg wash gives baked goods a rich crust and a deep, golden color. Chef Gordon Ramsay’s Beef Wellington recipe makes use of an egg yolk wash.
• Vinaigrette – While it is not necessary, adding an egg yolk to your vinaigrette can make it creamier and prevent oil and vinegar from seperating. Make a classic vinaigrette using egg yolk.

Which is the best way to cook egg whites vs. eggs?

Cooking eggs can cause protective proteins in the egg white to attach to vitamins. This makes them inedible to other species. However, eggs can also lose some nutrients from cooking.

The best way to cook an egg whole is to fully cook the whites to get rid of any egg proteins. However, it’s important to keep the yolks raw to retain their vitamins. To maximize nutrition, you should eat a poached, soft-boiled, or sunny-side-up egg, and not just an egg white egg omelet. To avoid Salmonella, the FDA recommends that you cook whites and yolks well. This is particularly important for those with compromised immune systems.