Chemical findings and in vitro biological studies to uphold the use of Ficus exasperata Vahl leaf and stem bark.
Journal:
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
PMID:
29288758
Abstract
Ficus exasperata Vahl, commonly known as sandpaper, is a terrestrial Afro-tropical tree used in popular medicine. Despite the existence of some works on the biological activities of this species, its chemical composition is still poorly known. The aim of this study was to extend the knowledge on the phytochemistry and biological properties of this species. Aqueous extracts from F. exasperata leaves and stem bark were analysed. Thirty-one phenolic compounds, comprising cinnamoyl derivatives, flavonoid-O-glycosides, flavonoid-mono-C-glycosides, flavonoid-di-C-glycosides and one furanocoumarin, were determined by HPLC-DAD-ESI/MS and UPLC-ESI-QTOF-MS, 26 of them being reported for the first time in this species. The profile of organic acids, characterized by HPLC-UV, was also reported for the first time. The best radical scavenging activity was observed for the aqueous extract from leaves (IC values of 222.5, 510.0 and 50.0 μg/mL against DPPH, NO and O, respectively). In addition, both aqueous extracts of the leaves and stem bark displayed a weak effect on α-amylase, and no cytotoxicity against gastric adenocarcinoma cell line, AGS. This study contributes to the valorisation of these vegetal materials, which may have application in functional foods and/or nutraceuticals.
Authors
Keywords
Cell Line, Tumor
Chromatography, High Pressure Liquid
Dietary Supplements
Dose-Response Relationship, Drug
Drug Screening Assays, Antitumor
Ficus
Free Radical Scavengers
Functional Food
Humans
Hypoglycemic Agents
Inhibitory Concentration 50
Nitric Oxide
Plant Bark
Plant Extracts
Plant Leaves
Plant Stems
Reproducibility of Results
Spectrometry, Mass, Electrospray Ionization
Spectrophotometry, Ultraviolet
Superoxides