This program looks at the different purposes of a range of food additives, showing how and why manufacturers introduce them during processing. Specifically, the program looks at: *Flavour. *Flavour enhancers - sweeteners, salt, food acids. *Appearance - colour, humectants, bleaches. *Texture - emulsifiers, thickeners. *Preservatives. *Nutrition - vitamins, minerals, amino acids. *Manufacture - lubricants, anti caking. *Anti-oxidants.