ABSTRACT
OBJECTIVE: To study the chemical constituents of the fat-soluble extraction from Lepidium meyenii root. METHODS: Different extraction methods were studied, including supercritical carbon dioxide extraction, circumfluence extraction and steam distillation. Chemical constituents of the fat-soluble extraction from Lepidium meyenii were analyzed by GC/MS. RESULT: The number of compounds isolated by the above four methods were 38, 31, 14, 21 (specific gravity less than 1 in steam distillation) , and 25 (specific gravity greater than 1 in steam distillation), accounting for 85.79%, 81.18%, 62.08%, 98.36% (specific gravity less than 1 in steam distillation) and 81.54% (specific gravity greater than 1 in steam distillation) of each total peak area, respectively. CONCLUSION: This study lays a certain foundation for further study and development of functional factors in Lepidium meyenii root.
