Study on the Quality Standards of Lepidogrammitis drymoglossoides(Bak.) Ching

ZHU Jing-jing et al(Hubei Key Laboratory of Natural Products Research and Development,China Three Gorges University,Yichang,Hubei 443002)

Lepidogrammitis drymoglossoides(Bak.) Ching;Microscopic characters;Physical and chemical identification;Water content determination;Ash content determination;Extract content determination

[Objective] The research aimed to study the microscopic characteristics,physical and chemical identification,contents of water,total ash,acid-insoluble ash and alcohol-soluble extracts of Lepidogrammitis drymoglossoides(Bak.)Ching and provide data for the establishment of quality standards of L.drymoglossoides.[Method] All methods were based on results of Pharmacopoeia of the People's Republic of China(2005 Edit).[Result] The histological characters of Lepidogrammitis drymoglossoides(Bak.)Ching were observed.The extract of crude drug showed positive coloration reaction with Liebermann-Burchard,Tschugaeff and Salkowski.The average content of water,total ash,acid-insoluble ash,alcoholic extract were determined as 11.98%,7.83%,0.27%,18.96%,respectively.[Conclusion] Based on the microscopic characteristics of L.drymoglossoides,L.drymoglossoides could be distinguished from other plants.Alcoholic extract showed positive coloration with triterpenoid sapogenins reagent.The content of water was less than 14.00%.The content of total ash was less than 10.00%.The content of acid-insoluble ash was less than 1.00%.The content of alcoholic extract was more than 15.00%.