Egg whites and yolks are used in many industrial food productions. Eggs are frequently used as emulsifiers in food production. Egg yolk contains lecithin, a naturally occurring emulsifier, in high amounts.
Paraffin is widely used in the food industry to give food a bright and lively appearance. In addition, it is commonly used in the pharmaceutical industry, in furniture polishes, leather processing, the textile industry, and in candle production.