Polyphenolic Characterization of Rhus coriaria L. Extracts by Comprehensive Two-Dimensional Liquid Chromatography

Introduction

Rhus coriaria L. (Anacardiaceae), commonly known as “sumac”, has been used since ancient times for many different applications; nowadays it is used mostly as a spice obtained from its grinded fruits and employed for flavoring and garnishing food predominantly in the Mediterranean and the Middle East regions. Traditionally sumac has been also used in popular medicine for the treatment of many ailments including haemorrhoids, wound healing, diarrhea, ulcer, and eye inflammation. Its drupes do contain various classes of phytochemicals namely organic acids, flavonoids, tannins and others, responsible of their powerful antioxidant capacity. In this report, a polyphenolic characterization of six different samples of Rhus coriaria L. was carried out, by using comprehensive two-dimensional liquid chromatography coupled to photodiode array and mass spectrometry detection. A total of 83 polyphenolic compounds, mainly gallic acid derivatives were positively identified. The results achieved might support the utilization of this plant as an attractive target for novel nutraceutical approaches and for drug discovery.

May 14, 2023 GMT