Origin
E 416 is produced by scoring the bark of Sterculia trees to allow the resin to flow out. This is collected and processed through several stages into a food-grade substance. The end product is white to gray powder that emits a distinct vinegar odor. E 416 is not particularly stable against acids and also lacks flavor neutrality.
Usage
The thickener Karaya is only approved for very specific foods in the European Union and is subject to maximum quantity restrictions. E 416 is widely used as a substitute for the thickener Tragacanth (E 413) because Tragacanth is more expensive in production costs. The gelling power of E 416 is significantly increased in the presence of milk protein, hence it is often added to dairy products. Karaya can be found in the following foods: fillings for baked goods, dietary supplements, desserts, snacks made from grains and potatoes, as well as egg liqueur.
Risks
Karaya is considered safe. The substance is indigestible and therefore acts as a bulking agent. Consumed in large quantities, E 416 can have a laxative effect.