Patent ID: 8623425

Claim:
A method for preparing an extract fraction reinforced with ginsenoside Rg1 relative to ginsenoside Rb1 from ginseng , comprising: preparing an alcohol extract of ginseng by adding 60 to 80 v/v % alcohol to ginseng and agitating the mixture at 65 to 75° C. for 24 to 36 hours; concentrating the alcohol extract of ginseng , diluting the concentrated extract in distilled water, and then, adding the diluted extract to an adsorption resin in order to adsorb the extract to the adsorption resin; passing distilled water through the adsorption resin and then eluting and removing unadsorbed ingredients; and adding 30 to 40 v/v % alcohol to the adsorption resin to obtain an eluate.