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Research Conducted at Shandong Agricultural University Has Provided New Information about Separation Science (Preparative separation of five flavones...

August 15, 2014



Research Conducted at Shandong Agricultural University Has Provided New Information about Separation Science (Preparative separation of five flavones from flowers of Polygonum cuspidatum by high-speed countercurrent chromatography)

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Science are presented in a new report. According to news reporting from Shandong, People's Republic of China, by NewsRx journalists, research stated, "A preparative high-speed countercurrent chromatography method was successfully used for the isolation of five minor flavones from Polygonum cuspidatum flowers. Among them, three compounds were obtained from P. cuspidatum for the first time."

The news correspondents obtained a quote from the research from Shandong Agricultural University, "A twin two-phase solvent system composed of n-hexane/ethyl acetate/ethanol/water (1: 6: 3:6, v/v/v/v) and petroleum ether/ethyl acetate/methanol/water (2: 4: 3:3, v/v/v/v) was developed. Compounds were obtained from the fraction B and fraction C prepurified by silica gel column chromatography. Five minor compositions, 6.8 mg of hesperidin, 11.2 mg of phloridzin, 4.9 mg of luteolin, 5.3 mg of hyperin, and 3.7 mg of luteoloside were obtained from 140 mg of the fraction B and 110 mg of fraction C with a purity of 95.3, 96.4, 98.0, 96.8, and 95.3%, respectively, as determined by high-performance liquid chromatography."

According to the news reporters, the research concluded: "The structures of these compounds were identified by H-1 and C-13 NMR spectroscopy."

For more information on this research see: Preparative separation of five flavones from flowers of Polygonum cuspidatum by high-speed countercurrent chromatography. Journal of Separation Science, 2014;37(13):1703-1709. Journal of Separation Science can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Journal of Separation Science - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1615-9314)

Our news journalists report that additional information may be obtained by contacting Y.S. Sun, Shandong Agriculture University, Coll Agron, Shandong Key Lab Crop Biol, State Key Lab Crop Biol, Tai An 271018, Shandong, People's Republic of China. Additional authors for this research include S.B. Gu, L.L. Guo, X. Xia, H. Zhang and J.H. Wang (see also Science).

Keywords for this news article include: Asia, Science, Shandong, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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