Packaging and storage— Preserve in well-closed containers,and store in a cool,dry place.

Labeling— The label states the Latin binomial and,following the official name,the part of the plant source from which the article was derived.

USP Reference standards á11ñ— USP Asian Ginseng Extract RS.

Botanic characteristics: pale yellowish-brown powder with a slightly aromatic odor.When examined under a microscope,the powder shows the following:traces of cork composed of thin-walled polygonal cells but mainly with phelloderm on the outside;wide cortex of parenchymatous cells with numerous secretory canals arranged in concentric zones;parenchymatous xylem with nonlignified tracheids and slightly lignified vessels with spiral and reticulate thickening,isolated or in small groups;small granules of starch 0.5to 1.0µm in diameter in all the parenchymatous cells;and occasional cluster crystals of calcium oxalate in the cells of the central region.

Other requirements— It meets the requirements of the tests for Identification,Microbial enumeration,Loss on drying,Foreign organic matter,Total ash,Acid-insoluble ash,Alcohol-soluble extractives,Pesticide residues,Heavy metals,and Content of ginsenosides Rb1and Rg1under Asian Ginseng.

Expert Committee:(DSB)Dietary Supplements:Botanicals

USP28–NF23Page 2099

Phone Number:1-301-816-8343