Pharmacognostic and Phytochemical studies on the rhizome of Nardostachys jatamansi DC. using different extracts

Introduction: Nardostachys jatamansi DC. is an important ayurvedic plant. The root and rhizome contain active compounds with carminative, sedative, antispasmodic and tranquilizing properties. It is also used as an insect repellent. Essential oil from the drug shows antimicrobial activity against a number of microorganisms. Method: The present study comprises microscopic and macroscopic studies, phyto-chemical, physic-chemical, fluorescence, HPTLC analysis and microbial load estimation of the rhizome. Conclusion: Different extracts showed difference in presence of phyto-chemical constituents and physicochemical properties but chromatographic studies showed that all extracts contained valtrate. The study will provide referential information for the correct identification of the crude drug and establish pharmacopeial standards.