The invention discloses a high-efficiency high-yield preparation method of a
panax notoginseng extract. The high-efficiency high-yield preparation method of the
panax notoginseng extract comprises the steps of taking fresh
panax notoginseng as a
raw material, homogenizing, performing
freeze drying and extracting. The method specifically comprises the following steps: taking the fresh panax notoginseng as the
raw material, adding water according to the weight ratio of 0.05-0.50 time, homogenizing to obtain a panax notoginseng
slurry, and performing
freeze drying, thereby obtaining panax notoginseng
powder; adding an
ethanol solution in a weight amount of 3-8 times into the panax notoginseng
slurry, leaching at the temperature of 20-35 DEG C for 0.5-3.0 hours, filtering, and concentrating, thereby obtaining a target
panax notoginseng extract; and adding an
ethanol solution in a weight amount of 5-15 times into the panax notoginseng
slurry, leaching at the temperature of 20-35 DEG C for 1-4 hours, filtering, and concentrating, thereby obtaining the target
panax notoginseng extract. By utilizing the characteristics that fresh panax notoginseng cells are full, the
cell structure is easy to damage and the active ingredients can be efficiently dissolved, the panax notoginseng
powder is prepared by combining a low-temperature
freeze drying method by adopting a homogenizing technology; and moreover, the characteristic that the active ingredients are free in the panax notoginseng
powder and are easy to dissolve is utilized, the active ingredients can be directly extracted and enriched, the
panax notoginseng extract is prepared, and the defects of the traditional method for preparing the panax notoginseng powder by disintegrating the panax notoginseng medicinal materials and performing
reflux extraction to produce the panax notoginseng extract are overcome.