rosmarinic-acid and vitexin

rosmarinic-acid has been researched along with vitexin* in 1 studies

Other Studies

1 other study(ies) available for rosmarinic-acid and vitexin

Article	Year
Phenolic constituents and antioxidant activity of an extract of Anthuriumversicolor leaves. Journal of natural products, 2001, Volume: 64, Issue:8 Fractionation of a methanolic extract of the leaves of Anthurium versicolor has resulted in the isolation of two main fractions, I and II. Both the extract and the fractions were assayed for their radical-scavenging activity by means of an in vitro test (bleaching of the stable 1,1-diphenyl-2-picrylhydrazyl radical) and showed a significant radical-scavenging effect. Subsequent chromatographic fractionation of the most active fraction, II, has led to the isolation and characterization, as major constituents, of four new flavone glycosides, acacetin 6-C-[alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucopyranoside] (1), acacetin 6-C-[beta-D-xylopyranosyl-(1-->6)-beta-D-glucopyranoside] (2), acacetin 6-C-[beta-D-apiofuranosyl-(1-->3)-beta-D-glucopyranoside] (3), and acacetin 8-C-[alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucopyranoside] (4), as well as vitexin (apigenin-8-C-beta-D-glucopyranoside) and rosmarinic acid. The structures of 1-4 were determined using spectroscopic methods. Topics: Antioxidants; Apigenin; Bepridil; Biphenyl Compounds; Chromatography, High Pressure Liquid; Cinnamates; Depsides; Ecuador; Flavonoids; Free Radical Scavengers; Glycosides; Magnetic Resonance Spectroscopy; Mass Spectrometry; Molecular Structure; Picrates; Plant Leaves; Plants, Medicinal; Rosmarinic Acid; Spectrophotometry, Ultraviolet	2001

Article

Year

Phenolic constituents and antioxidant activity of an extract of Anthuriumversicolor leaves.

Journal of natural products, 2001, Volume: 64, Issue:8

Fractionation of a methanolic extract of the leaves of Anthurium versicolor has resulted in the isolation of two main fractions, I and II. Both the extract and the fractions were assayed for their radical-scavenging activity by means of an in vitro test (bleaching of the stable 1,1-diphenyl-2-picrylhydrazyl radical) and showed a significant radical-scavenging effect. Subsequent chromatographic fractionation of the most active fraction, II, has led to the isolation and characterization, as major constituents, of four new flavone glycosides, acacetin 6-C-[alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucopyranoside] (1), acacetin 6-C-[beta-D-xylopyranosyl-(1-->6)-beta-D-glucopyranoside] (2), acacetin 6-C-[beta-D-apiofuranosyl-(1-->3)-beta-D-glucopyranoside] (3), and acacetin 8-C-[alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucopyranoside] (4), as well as vitexin (apigenin-8-C-beta-D-glucopyranoside) and rosmarinic acid. The structures of 1-4 were determined using spectroscopic methods.

Topics: Antioxidants; Apigenin; Bepridil; Biphenyl Compounds; Chromatography, High Pressure Liquid; Cinnamates; Depsides; Ecuador; Flavonoids; Free Radical Scavengers; Glycosides; Magnetic Resonance Spectroscopy; Mass Spectrometry; Molecular Structure; Picrates; Plant Leaves; Plants, Medicinal; Rosmarinic Acid; Spectrophotometry, Ultraviolet

2001