Assay of free ferulic acid and total ferulic acid for the quality assessment of Angelica Sinensis

Kelvin Chan, University of Wolverhampton, United Kingdom

Abstract

Activity of Chinese Danggui (DG), the processed root of Angelica sinensis (Oliv.) Diels, is linked to the ferulic acid content but the stability of ferulic acid during extraction for medicinal use is not known. The stabilities of ferulic acid and coniferyl acid were evaluated in the extracts of DG using a variety of extraction solvents.