Pharmacognostic and Preliminary Phytochemical Investigations on Jatrophae curcatis semen

Introdution:Jatropha curcas L.(Euphorbiaceae) distributes in many parts of China with abundant resources. The seed (Jatrophae curcatis semen) of this plant is used to produce biodiesel, and the extract also has strong molluseicidal effect on Oncomelania. But few researches have been done about the pharmacognostic and phytochemical nature of the seed. Methods: The macroscopic and microscopic characters were observed by conventional methods and optical microscope.Moisture content, the alcohol soluble extractive and the fatty oil content were determined respectively. The identification and ingredient analysis were conducted by thin-layer chromatography (TLC) and high performance liquid chromatography (HPLC). Results: The main microscopic characteristics are palisade sclereids, pillar stone cells and filiform sclereids. Moisture content should be not more than 8.0%, alcohol soluble extractive value not less than 14.0%, and content of fatty oil not less than 35.0% according to sample analysis. TLC fingerprinting of the seed extracts was developed. Conclusion: The results presented can provide some references for authenticity and quality control of Jatrophae curcatis semen.