ABSTRACT
<p><b>OBJECTIVE</b>To study the chemical composition of Opuntia dillenii.</p><p><b>METHOD</b>Many kinds of chromatography methods were used in the isolation procedure, while the structures of isolated compounds were determined on the aids of NMR and MS spectral analysis.</p><p><b>RESULT</b>A new compound, together with five known compounds, was isolated form the 80% ethanolic extract of its stems.</p><p><b>CONCLUSION</b>The new compound was characterized as opuntioside. Four compounds were obtained for the first from the genus Opuntia, and they were daucosterol, p-hydroxybenzoicacid, L-(-)-malic acid, (E)-ferulic acid. Opuntiol was also separated for the first from the plant.</p>
Subject(s)
Coumaric Acids , Chemistry , Molecular Structure , Monosaccharides , Chemistry , Opuntia , Chemistry , Plant Stems , Chemistry , Plants, Medicinal , Chemistry , Sitosterols , ChemistryABSTRACT
<p><b>AIM</b>To study the chemical composition of Opuntia dillenii Haw.</p><p><b>METHODS</b>Many kinds of chromatography methods were used to separate the chemical constituents. Their structures were determined by NMR and MS spectral analysis.</p><p><b>RESULTS</b>A new compound, together with five known compounds, were isolated from the 80% ethanolic extract of the stems.</p><p><b>CONCLUSION</b>The new compound was identified as 4-ethoxyl-6-hydroxymethyl-alpha-pyrone. Compounds 1, 3, 4 and 5 were obtained for the first time from the genus of Opuntia, and they were: 3-O-methyl isorhamnein, 1-heptanecanol, vanillic acid, isorhamnetin-3-O-beta-D-rutinoside. Ruin was isolated from this plant for the first time.</p>
Subject(s)
Molecular Structure , Opuntia , Chemistry , Plant Stems , Chemistry , Plants, Medicinal , Chemistry , Pyrones , Chemistry , Rutin , Chemistry , Vanillic Acid , ChemistryABSTRACT
<p><b>OBJECTIVE</b>To isolate and elucidate the constituents from the roots of Commercial Ginseng.</p><p><b>METHOD</b>Column chromatography and HPLC were used to isolate chemical constituents. Physico-chemical characters and spectr-oscopic analysis were employed for structural identification.</p><p><b>RESULT</b>Sixteen compounds were identified as: notoginsenoside-R2(1), ginsenoside-Rg2(2), 20 (R)-Rg2 (3), ginsenoside-Rg1 (4), -Rf(5), -Re(6), -Rd(7), -Rc(8), -Rb1(9), -Rb2(10), -Rb3(11), -Ra3(12), -Ra2(13), -Ra1 (14), notoginsenoside-R4(15) and ginsenoside -Ro(16).</p><p><b>CONCLUSION</b>Compound 1 was obtained from the plant for the first time.</p>