Packaging and storage— Preserve in well-closed containers,protected from light and moisture.

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 Powdered Ginger RS.USP Capsaicin RS.

Botanic characteristics— Under a microscope,Powdered Ginger reveals mainly starch grains and parenchyma cells containing them;also parenchyma cells containing yellow-brown to dark brown resinous substances or single crystals of calcium oxalate;fragments of fibers with distinct pits;fragments of spiral,ring,and reticulate vessels often accompanied by pigment cells;oleoresin in fragments or droplets,staining with iodine TSand potassium iodide TS,and,rarely,fragments of cork tissue;starch grains composed of simple,compound or half-compound grains,spherical ovoid or globular with abaxial hilum,usually 20to 30µm in long axis.Sclerenchymatous cells,trichomes,and calcium oxalate absent.

Heavy metals á231ñ: 0.002%.

Other requirements— It responds to the Identificationtests and meets the requirements for Total ash,Acid-insoluble ash,Water-soluble ash,Water,Alcohol-soluble extractives,Water-soluble extractives,Volatile oil content,Pesticide residues,Microbial enumeration,Starch content,Limit of shogaols,and Content of gingerols and gingerdionesunder Ginger.

Expert Committee:(DSB)Dietary Supplements:Botanicals

USP28–NF23Page 2092

Phone Number:1-301-816-8343