Preliminary study on chemical constituents seperated from Cayratia japonica / 中国中药杂志

<p><b>OBJECTIVE</b>To study effective active constituents of Cayratia japonica,a genuine herbal medicine from Fujian.</p><p><b>METHOD</b>Such chromatographic methods as Macroporous, Sephadex LH-20, ODS and normal phase silica gel column chromatography were adopted to separate the chemical components of C. japonica.</p><p><b>RESULT</b>Thirteen compounds were obtained, and their structures were identified by analyzing multiple spectral data as luteolin(1), apigenin(2), triethyl citrate-(3), 3-formylindole(4), esculetin(5), bis(2-ethylhexyl)-phthalate(6), calendin(7), ethyl-trans-3,4-dihydr-oxycinnamate(8), luteolin7-O-D-glucoside(9),5-hydroxy-3,4-dimethyl-5-pentyl-2(5H-furanone(10),ethyl-3,4-dihydroxybenzoate(11), eriodictyol(12) and daucosterol(13).</p><p><b>CONCLUSION</b>Among them, compounds 3-8 and 10-12 were separated from the plant for the first time.</p>

Comparative analysis of ginsenosides from red ginseng / 中国中药杂志

<p><b>OBJECTIVE</b>To determine ginsenoside Rg1, Re, Rb1, Rc, Rb2, Rd from main root and root hair of red ginseng of different specifications.</p><p><b>METHOD</b>Ultrasonical extraction and reversed phase high performance liquid chromatography were applied.</p><p><b>RESULT</b>The total contents of six ginsenosides from main root 15 roots (percent 500 g), 20 roots, 30 roots and root hair are 1.21%, 1.46%, 1.54% and 8.16%, respectively.</p><p><b>CONCLUSION</b>The results showed that the bigger the volume of ginseng root, the less the content of ginsenoside.</p>