Biomaterial Database

Multidimensional counter-current chromatographic system and its application. 1998

F Yang, and J Quan, and T Y Zhang, and Y Ito

Beijing Institute of New Technology Application, China.

A multidimensional counter-current chromatographic system was set up for the first time with two sets of high-speed counter-current chromatography instruments. This system was successfully applied to the preparative separation of isorhamnetin, kaempferol and quercetin from crude flavone aglycones of Ginkgo biloba L. and Hippophae rhamnoides L. with a two-phase solvent system composed of chloroform-methanol-water (4:3:2, v/v/v).

UI	MeSH Term	Description	Entries
D011794	Quercetin	A flavonol widely distributed in plants. It is an antioxidant, like many other phenolic heterocyclic compounds. Glycosylated forms include RUTIN and quercetrin.	3,3',4',5,7-Pentahydroxyflavone,Dikvertin
D002853	Chromatography, Liquid	Chromatographic techniques in which the mobile phase is a liquid.	Liquid Chromatography
D005419	Flavonoids	A group of phenyl benzopyrans named for having structures like FLAVONES.	2-Phenyl-Benzopyran,2-Phenyl-Chromene,Bioflavonoid,Bioflavonoids,Flavonoid,2-Phenyl-Benzopyrans,2-Phenyl-Chromenes,2 Phenyl Benzopyran,2 Phenyl Benzopyrans,2 Phenyl Chromene,2 Phenyl Chromenes
D000998	Antiviral Agents	Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly.	Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D044948	Flavonols	A group of 3-hydroxy-4-keto-FLAVONOIDS.	2-Phenyl-3-Hydroxy-Benzopyran-4-Ones,3-hydroxy-4-keto-Flavonoids,2 Phenyl 3 Hydroxy Benzopyran 4 Ones,3 hydroxy 4 keto Flavonoids
D044949	Kaempferols	A group of FLAVONOLS based on kaempferol. They are derived from naringenin and can be hydroxylated to QUERCETIN or reduced to leucopelargonidin.
D032462	Cycadopsida	A class of vascular seed plants also known as gymnosperms in the subdivision spermatophytina. They have large cones and pinnate leaves. Examples are pines, spruces, cedars and sequoias.	Gymnosperms,Cycadales,Cycadophyta,Cycadale,Cycadophytas,Gymnosperm