What is e920 ingredient in breads?

There is no widely recognized ingredient called "e920" in breads. It's possible you're misremembering or there's a typo.

Food additives typically use the "E" code system, but "E920" doesn't correspond to any known additive.

Here are some things to consider:

* Double-check the source: Where did you see "e920"? Was it on a product label, in a recipe, or somewhere else?

* Typo: Perhaps it was a typo, and you meant a different E-number.

* Uncommon ingredient: It's possible this is a very specialized ingredient used in a small number of breads, but it's highly unlikely to be a widely recognized food additive.

If you can provide more context, I may be able to assist you further.