Powdered Licorice
» Powdered Licorice is Licorice reduced to a fine or very fine powder. It contains not less than 2.5 percent of glycyrrhizic acid (C42H62O16), calculated on the dried basis.
Packaging and storage— Store in well-closed containers in a cool, dry place.
Labeling— The label states the Latin binomial and, following the official name, the part of the plant contained in the article.
USP Reference standards 11
USP Glycyrrhizic Acid RS.
Botanic characteristics— It is light yellow-brown and has a slight odor and sweet taste. Under a microscope, Powdered Licorice reveals parenchyma cells containing starch grains and solitary crystals of calcium oxalate, parenchyma cell fragments, cork tissue, yellow sclerenchymatous fiber bundles that are accompanied by crystal cell rows, and vessels with reticulate and scalariform pits.
Other requirements— It meets the requirements for Thin-layer chromatographic identification test and the tests for Loss on drying, Foreign organic matter, Total ash, Acid-insoluble ash, Alcohol-soluble extractives, Pesticide residues, Heavy metals, and Content of glycyrrhizic acid under Licorice.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Maged H. Sharaf, Ph.D.
Senior Scientist
(DSB05) Dietary Supplements - Botanicals
Reference Standards Lili Wang, Technical Services Scientist
USP32–NF27 Page 1041
Chromatographic Column—
Chromatographic columns text is not derived from, and not part of, USP 32 or NF 27.