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Published:
Oct 8, 2024Keywords:
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Main Article Content
Chemical composition, cytotoxic potential and antioxidant properties of Punica granatum peel extract
Abstract
Purpose: To evaluate the antioxidant activity of pomegranate peel extract and its effects on the survival of colorectal cancer cells (Caco-2) and kidney cells (HEK293).
Methods: An ethanol extract was prepared from the outer layer of pomegranate peels. The chemical composition of the extract was examined using high-performance liquid chromatography with diodearray detection (HPLC-DAD) and liquid chromatography with tandem mass spectrometry (LC-MS-MS). Antioxidant activity was determined using DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2'- azinobis(3-ethylbenzothiazoline-6-sulfonic acid)) assays. Cytotoxicity was tested against Caco-2 colorectal cancer cells and HEK293 normal kidney cells using MTT assay.
Results: The pomegranate peel extract was rich in phenolic compounds and demonstrated significant antioxidant activity, with IC50 values comparable to Trolox in DPPH and ABTS assays. The extract exhibited selective and concentration-dependent cytotoxicity against Caco-2 cells, with an EC50 of 121.05 ± 13.12 µg/mL, while showing minimal toxicity towards HEK293 cells.
Conclusion: Pomegranate peel extract's high phenolic content and potent antioxidant properties highlight its potential as a therapeutic agent against colorectal cancer. The findings suggest that this extract could serve as a viable, natural alternative with reduced toxicity for colorectal cancer treatment.
