Chinese Gallnut Extract, also referred to as Chinese gall (or nutgalls), is a plant excretion produced when irritants are released by the larvae of gall insects, such as those of the Cynipidae family, the gall wasps. A major commercial source of medicinal gallnuts is oak trees, which yield the Chinese herb moshizi, but a similar material is found on Chinese sumac (Rhus species), produced by the activities of a type of aphid; these galls are called wubeizi by Chinese herbalists. The plant secretes the liquid gall, comprised mainly of tannins, that hardens to become the "nut."
|Description||Brown yellow powder||Complies|
|Loss on Drying||Max 5.0%||3.45%|
|Assay||Gallic acid, Ellagic acid,Tannic Acid|
|Heavy Metal||Max 20ppm||6.1ppm|
|Residue on Menstruum||Max 50ppm methanol/acetone||Negative|
|Residue of Pesticide||Max 2ppm||Negative|
|Total Plate Count||Max 10000cfu/g||9600|