Related Experiment Video
Updated: Mar 13, 2026

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
Published on: July 5, 2017
Two new prenylated flavonoids from the roots of Berberis thunbergii DC
Nusrat Hussain1, Achyut Adhikari1, Malik Shoaib Ahmad1
1a H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan.
Abstract:
Two new prenylated flavonoids, thunbergiols A (1) and B (2), along with three known compounds, chrysin (3), quercetin (4) and berberine (5) were obtained from the methanolic extract of roots of Berberis thunbergii DC. MS, NMR and other spectroscopic techniques were employed for their structural characterisation.
Related Concept Videos
Cancer Prevention
Some...
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...

