ARS | Publication request: Identification of the Phenolic Components of Arnica Flowers (Arnica montana L.) by LC-DAD-ESI/MS (Experimental Biology annual Meeting, April 2007, Washington, D.C.)

Submitted to: Experimental Biology
Publication Type: Abstract Only
Publication Acceptance Date: November 3, 2006
Publication Date: April 1, 2007
Citation: Lin, L., Harnly, J.M. 2007. Identification of the Phenolic Components of Arnica Flowers (Arnica montana L.) by LC-DAD-ESI/MS. Experimental Biology, April 25, 2007, Washington, D.C.

Technical Abstract: High-performance liquid chromatography-electrospray ionization-mass spectrometry (LC-DAD-ESI/MS) was used to separate and identify the phenolic components of arnica flowers (Arnica montana L.), a spice/herb in US market. A total of eight glycosylated flavonols and 27 hydroxycinnamates were identified. Among them, six flavonoids and nine dicaffeoylqunic acids were unambiguously identified. The remaining compounds were provisionally identified by their UV and MS data. This is the first report of the existence of four flavonol glucuronides and fifteen hydroxycinnamates in arnica flowers. The caffeoylquinic acids isolated from honey suckle flowers and characterized by Ms and NMR were used to identify those in the arnica flowers and in artichoke for the first time.