Avena sativa Seed Identity & Plant Part
The botanical entity is Avena sativa L., an annual cereal grass of the family Poaceae. The part used is the seed, meaning the oat grain with its hull removed, as sold for milling. Straw, the green tops and the separated bran are not added to this oat seed extract.
Oat is sold as several raw materials with different roles: the seed or groat, the bran, the green or milky tops and the straw. A specification that says only “Avena sativa extract” does not tell a buyer which part is used, so the product names the seed. The seed carries starch, protein, lipids, soluble fiber in the form of beta-glucan, and phenolic avenanthramides that are concentrated in the bran layer.












