Disclosed is a
red yeast rice extract oil and the preparation and application of the soft
capsule thereof. The preparation method comprises: adding
solvent into the
red yeast rice medicinal material, heating for
backflow for 2-5 hours; filtering, adding the filter residue into the
solvent, heating for
backflow for 1-4 hours; merging the filtrates; condensing at 50-90 degrees centigrade into extract with
relative density of 1.1-1.4 at 25 degrees centigrade; adding
ethanol by amount of 1-4 times (
mass) of the
red yeast rice medicinal material into the extract; dissolving, filtering, recovering
ethanol to obtain stiff paste; adding
ethanol by amount of 0.5-1 times (
mass) of the red
yeast rice medicinal material into the stiff paste; distilling to
dryness at 60-95 degrees centigrade, insulating thermal for 1-5 hours; adding 0.5-4 times of ethanol into the extract; adding 0.5-5 times of
vegetable oil, stirring uniformly at 50-70 degrees centigrade; recovering the ethanol to obtain the
red yeast rice extract oil. The content of the
active ingredient:
lovastatin in the soft
capsule prepared by the
red yeast rice extract oil is 0.2-1.2wt%; the soft
capsule is applied for preparing medicament for treating hyperlipemia; The invention can remove the large amount of
unavailability components in the red
yeast rice, and increases the content of
lovastatin compounds in the extract of per
weight unit effectively.