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Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg. In chickens , it is formed from the layers of secretions of the anterior section of the hen's oviduct during the passage of the egg. [ 1 ]
The egg yolk is suspended in the egg white by one or two spiral bands of tissue called the chalazae (from the Greek word χάλαζα, meaning 'hailstone' or 'hard lump'). The shape of a chicken egg resembles a prolate spheroid with one end larger than the other and has cylindrical symmetry along the long axis.
The clarification process also historically utilised blood rather than egg whites. A special type of consommé that was boiled solely with tendons and cartilage without the addition of salt was sweetened, flavoured with fruits and served as dessert. These sweetened consommé creations are essentially the forerunners of present-day gelatin desserts.
Separating eggs is a process, generally used in cooking, in which the egg yolk is removed from the egg white. This allows one part of the egg to be used without the other part, or each part to be treated in different ways. Recipes for custard call for egg yolks, for example. The most common reason for separating eggs is so the whites can be ...
The Haugh unit is a measure of egg protein quality based on the height of its egg white (albumen). [1] The test was introduced by Raymond Haugh in 1937 [1] and is an important industry measure of egg quality next to other measures such as shell thickness and strength.
The process of cooking an egg causes the proteins within the yolk and albumin to denature and solidify, resulting in a solid egg white and yolk. [5] Coagulation (denaturing) of egg white proteins begins in the 55–60 °C (131–140 °F) temperature range, and egg yolks thicken at the slightly higher temperature of 65 °C (149 °F), solidifying ...
The duration of egg incubation is a matter of local preference. In the Philippines, balut is generally incubated for 14 to 18 days before being boiled for consumption. At about 14 to 16 days of incubation, the embryo floats on top of the egg white and yolk, and the balut is called "mamatong". [6]
Egg products include whole eggs, whites, yolks and various blends with or without non-egg ingredients that are processed and pasteurized and may be available in liquid, frozen, and dried forms. [10] This is achieved by heating the products to a specified temperature for a specified period.