Establishment of a rapid method to evaluate ultrafiltration membrane aperture for pharmaceutical industry In vivo pharmacokinetic study on total saponins from roots of Panax ginseng in rats Fermentation transformed ginsenoside by Lactobacillus plantarum Advances in studies on ginsenoside Rd Effects of different steaming methods on saponins in taproots of Panax notoginseng Simultaneous determination of sixteen ginsenosides in Panax ginseng and its preparation by HPLC Effect of different drying methods on ginsenosides in flower of Panax ginseng and Panax quinquefolius