What is the yolk?

yellow is a central part of a bird egg that is designed to provide nutrients to the developing chicken before hatching. The seed is commonly very high in a number of vitamins and minerals, which makes them an enviable source of food for humans and many other animals. The vast majority of eggs that reach the human markets are unprertilized, which means they are without embryos. In most cases the egg yolks are yellow or orange.

site in biology

All kinds of birds are reproduced by laying eggs and the yolk plays a key role in the development of chickens for growth. The embryonic chicken usually develops next to or on the top of the egg yolk and is able to extract nutrients and nutrition that supports them until it is strong enough to break out of the shell.

Nutritional attributes

The specific nutritional benefits of egg yolks vary depending on their size and type, but all are full of protein and vitamins. Most are high content of vitamins A, D and E, although sometimes they are tWhen vitamins B are present. Basic minerals such as folate, calcium and iron are usually also part of the mixture.

as a food source

The same nutrients that help to develop birds can also help many other animals, and rich yolk is what makes eggs a desirable source of food. Foxes and snakes are well known thieves of eggs in hens and around them and animals of all varieties eat bird eggs found in the wild.

Most human cultures also appreciate eggs. Western cooking usually focuses on chicken eggs, but almost any kind of bird egg is edible. The ostroch, quail and dove egg yolks are used as food sources and recipes in many parts of the world.

Possible disadvantages

Despite the benefits of egg yolks, most health experts recommend to consume them only in moderation because of how high the tendency is to becholesterol. Cholesterol, substanceIt is not necessarily bad in the blood - but too many of this can cause a number of health problems, mostly related to heart. Regular consumption of egg yolks is often associated with "high cholesterol", a health condition that often requires correction of drugs.

culinary use

There are many ways to cook egg yolks. Simply boiling eggs The whole is usually the simplest method, although it is also popular alternatives or frying. These preparations usually use both yolk and clean membranes that surround it, usually referred to as egg white .

Interaction with egg whites

Whites Egg contains little nutritious benefits that make egg yolks, but are still useful for many baking and cooking projects for their smooth, greasy consistency. Some recipes require that the yard be separated from white, usually for density. Custurs, Souffles and Fat Sauces as Hollandais commonly use egg yolks. NOther complex cakes and pastries require the yolk to be separated from white when assembling ingredients, even if both are used.

cosmetic and scientific use

egg yolks can also have space outside the kitchen, especially when it comes to cosmetics. Hair rinsing with egg yolk is believed that many to improve, for example, shine and elasticity, and the application of broken egg yolks on the skin is a common home drug for dry or irritated skin.

egg yolks can also be used in the pharmaceutical industry or in other efforts to scientific research. The holy consistency of the yolk makes it an ideal surface on which to test various molecular interactions and growth patterns.