Research on the Content of Pharmacodynamic Components of Moutan Cortex by HPCE in Different Ages and Picking Periods

OBJECTIVE To determine the best harvesting time for Moutan Cortex and provide basis of GAP production.METHODS HPCE was employed to determine the content of 2 pharmacodynamic components( paeonol and gallic acid) of Moutan Cortex at different ages and picking periods.RESULTS The contents of paeonol and gallic acid in Moutan Cortex were different in various harvesting time， and relatively higher in 5 or 6-year-old Moutan Cortex; all components contents were higher and more stable in September or October at the same harvesting year.CONCLUSION Concluding various factors， September or October is the best harvesting time for 5-year-old Moutan Cortex.