Is e477 vegan?

E477 is the E-number for propane-1,2-diol esters of fatty acids, commonly known as propylene glycol esters of fatty acids. It is a food additive used primarily as an emulsifier and stabilizer to improve texture and blend ingredients that normally separate. Manufacturers produce it by chemically reacting propylene glycol with fatty acids. It frequently appears on labels for commercial baked goods, cake mixes, frostings, whipped toppings, margarine, and processed desserts.

E477 is possibly vegan because the fatty acids can be derived from either plant or animal origins. Plant sources usually involve vegetable oils like palm, soybean, or rapeseed oil, whereas animal sources involve rendered fats such as beef tallow or pork lard. Food ingredient labels generally do not disclose the origin of these fatty acids. Because of this ambiguity, consumers need to look for a certified vegan label on the packaging or contact the manufacturer directly to confirm the source.