Brassica juncea Identity & Plant Part
The botanical entity is Brassica juncea (L.) Czern., brown mustard of the Brassicaceae, an annual with yellow four-petaled flowers and slender pods packed with small reddish-brown seeds. The part used is the seed. The leaf, stem and root are not part of this mustard seed extract.
Three mustard species are traded as seed. Black mustard is Brassica nigra and white or yellow mustard is Sinapis alba, so a specification should quote the Latin binomial. The seed holds glucosinolates such as sinigrin together with the enzyme myrosinase, fixed oil, mucilage in the seed coat and phenolic acids, named here only as families.












