Enzymatic modification of total ginsenosides in Panax ginseng stems and leaves and their HPLC chromatograms Relationship between lignin contents and growth ages of Panax ginseng Microbial transformation on ginsenoside compound K from total saponins in fruit of Panax ginseng Advances in studies on age of Panax ginseng Total saponins of Panax ginseng inducing CD34+ cells to differentiate into granulocytopoietic lineage in vitro Optimizing super pressure extracting technique for ginsenoside from Panax ginseng by orthogonal test