... ,cellwall-broken, biodegradation, remove antigen, water extract, concentrate, spraydrying. Appearance: light brown &yellow flowing powder, the color of the watersolution is ... . Differentpollen has different color, for example, the rape pollen is light yellow, thebuckwheat pollen is brown, the tea pollen is orange ... diet. Bee Pollen Extract Powder,Bee Pollen,Bee Pollen P.E.