The antibacterial activity of extract and isolated major alkaloids (berberine, β-hydrastine,
canadine and canadaline) of Hydrastis canadensis L.(Ranunculaceae) was evaluated …

A critical challenge in the study of botanical natural products is the difficulty of identifying
multiple compounds that may contribute additively, synergistically, or antagonistically to …

Two new C-methyl flavonoids, 6, 8-di-C-methylluteolin 7-methyl ether (1) and 6-C-
methylluteolin 7-methyl ether (2), were isolated from a commercially available sample of the …

The characterization of herbal materials is a significant challenge to analytical chemists.
Goldenseal (Hydrastis canadensis L.), which has been chosen for toxicity evaluation by …

Tubers of Corydalis cava were extracted with ethanol and fractionated using n-hexane,
chloroform and ethanol. Repeated column chromatography, preparative TLC and …

Chemical investigation of the tubers of Corydalis ternata resulted in the isolation and
characterization of four new benzylisoquinoline alkaloids, epi-coryximine (1) and …

Staphylococcus aureus is an opportunistic pathogen. Over‐and improper‐use of
pharmaceuticals against S. aureus has led to the development of antibiotic resistance …

Goldenseal (the rhizomes of Hydrastis canadensis) has a long history of use in North
American folk medicine and today is one of the top-selling herbal dietary supplements in the …

A fast, practical ambient extraction methodology followed by isocratic liquid chromatography
(LC) analysis with UV detection was validated for the determination of berberine, hydrastine …

Goldenseal (Hydrastis canadensis L.) is a popular medicinal plant distributed widely in
North America. The rhizome, rootlets, and root hairs produce medicinally active alkaloids …