Investigation and Comparison of Antioxidant Potential of Catechins Present in Green Tea: DFT Study

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2022

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Chemistry Chemical Technology

Abstract

DFT calculations were applied to compare the antioxidant potential of four major catechins present in green tea. The thermodynamic parameters related to three key mechanisms of primary antioxidant action were investigated in detail. Molecular orbital energies, absolute hardness, electronegativity, and electrophilicity index, which contributed to the radical scavenging were also investigated. The radical scavenging potential of each hydroxyl group of these polyphenolic antioxidants were investigated independently.

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Keywords

DFT, catechins, hydrogen atom transfer, single electron transfer–proton transfer, sequential proton loss–electron transfer, HOMO-LUMO

Citation

Wijesooriya, S. S., & Pandithavidana, D. R. (2022). Investigation and Comparison of Antioxidant Potential of Catechins Present in Green Tea: DFT Study. Chemistry ; Chemical Technology, 16(4), 591–599. https://doi.org/10.23939/chcht16.04.591

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