Dalian Light Industry College has completed its subject “to produce
ginseng rare saponin Rh2 by way of biological transformation”,which
passed provincial-level verification and will be put commercial
production.Ginseng saponin Rh2 is contained in red ginseng or wild
ginseng, about 3-5 ten thousandths. Through efforts of more than ten
years, researchers have found a new method to extract it at a rate 500
times higher than usual.(Dalian Daily p.B2.April 8,2002.)