Studies on harvest period for Papaver nudicaule / 中草药

ABSTRACT

Object To study the content of nudicauline in Papaver nudicaule L.from different harvest period, so as to provide the basis for development of the plant.Methods The nudicauline content in P.nudicaule was determined by HPLC with Shim-Pack CLC-ODS (4.6 mm?250 mm), mobile phase was methanol-water-diethylamine (550∶450∶0.45), detection wavelength was at 261 nm.Results The contents of nudicauline in P.nudicaule were greatly different from different harvest period, the content of nudicauline is higher in both July and Augest.Conclusion The whole plant is best harvested during July and Augest.