Abstract
The study aimed to investigate the antioxidant and cholinesterase inhibitory activities of the leaves and stems of Artocarpus sericicarpus and to analyse the phenolic compounds in the extracts. The modified Ellman’s method was used to determine the cholinesterase inhibitory activities against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes. The antioxidant properties were evaluated using DPPH and ABTS methods. The total phenolic content (TPC) was measured by spectrometric assay, and compound identification was carried out by LC-MS/MS analysis. The results showed that the leaf and stem extracts of A. sericicarpus exerted significant inhibitory effects against AChE and BChE, as well as antioxidant activities. The stem ethanolic extract exhibited the highest potency against AChE and BChE with IC50 values of 5.81 and 11.46 µg/mL, respectively. The leaf and stem ethanolic extracts gave higher antioxidant activities and TPC compared to the water-based extracts. The LC-MS/MS analysis indicated the presence of phenolic compounds, such as flavones, flavonols, flavanones, prenylated chalcones, and xanthones in the extracts.
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