The invention relates to a method for extracting
lycorine from
Lycoris plants, which comprises the following steps: 1. extraction: weighing
Lycoris plant powder which is subjected to
drying, pulverization and screening, adding water with the pH value of 1.5-7.5 according to the material-
liquid ratio (g / mL) of 1:(5-25), adding an
enzyme which accounts for 1-5 wt% of the
Lycoris plant powder, carrying out enzymolysis at 40-80 DEG C for 0.5-2.5 hours, centrifuging for 20 minutes, filtering, and taking the supernate to obtain a
lycorine extracting solution; 2. purification: (1) carrying out
solvent extraction; (2) adsorbing with a cation exchange resin; (3) carrying out C18 reversed-phase
silica gel column chromatography; (4) carrying out normal-phase
silica gel column chromatography; and (5) recrystallization: dissolving the dried substance III obtained in the step (4) in
ethanol, recrystallizing to obtain a
lycorine crude product, filtering, and carrying out
vacuum drying at 50-60 DEG C to obtain the lycorine. The method is simple to operate, and has the advantages of low production cost, no environment
pollution, short reaction time and higher extraction yield (30.46% higher than other methods). The purification technique has the advantages of environment friendliness and high purity (up to 99.3%).