What is the origin of emulsifier 476 and 442?

Emulsifier 476, also known as polyglycerol esters of fatty acids, is derived from natural fats and oils through the process of esterification with polyglycerol. Emulsifier 442, or mono- and diglycerides of fatty acids, is produced by the glycerolysis of fats and oils, typically sourced from vegetable or animal origins. Both emulsifiers are commonly used in food products to improve texture and stability by helping mix ingredients that usually don't combine, like oil and water.