1 The colour of the yolk does not affect the egg nutritional value. 2  Chalazea (chuh-LAY-zee): A pair of spiral bands that anchor the yolk in the centre of the thick albumen. 3  The fresher the egg, the more prominent the chalazae. 4  Germinal Disk: Appears as a slight depression on the surface of the yolk.
Bleaching agents. General info. The purpose of bleaching agents is to bleach the natural substances in cotton fibres and cellulose fibres that make the fabric yellowish and to bleach spots that are not removed by the laundering process.Bleaching agents also bleach textile colours and hence should be avoided for coloured textiles.eneral info. The purpose of bleaching agents is to bleach the natural substances in cotton fibres and cellulose fibres that make the fabric yellowish and to bleach spots that are not removed by the laundering process.
Bleach is a specific type of laundry aid that helps remove dirt and stains from clothing, but it also removes color from most clothes.Bleach creates a chemical reaction with soil that breaks it down and removes it from clothing. Bleach also has a whitening and brightening effect on white clothing.leach is a specific type of laundry aid that helps remove dirt and stains from clothing, but it also removes color from most clothes.