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2 results on '"SdPLdET"'

1. Carboxyl Group as a Radical Scavenging Moiety: Thermodynamics of 2H+/2e- Processes of Phloretic Acid.

Author

Amić, Ana, Lučić, Bono, Marković, Zoran, and Amić, Dragan

Subjects
*MATHEMATICAL models of thermodynamics, *FUNCTIONAL groups, *PRECIPITATION scavenging, *CHEMICAL scavengers, *POLYPHENOLS
Abstract

Phloretic acid is one of the most abundant colon catabolites of various classes of polyphenols (e.g., polymeric proanthocyanidins, tea catechins, and ellagitannins). In this paper thermodynamics of 2H+/2e- radical scavenging mechanisms of phloretic acid was studied. For the first time the involvement of carboxyl group in double hydrogen atom transfer (dHAT), double electron transfer-proton transfer (dET-PT) and sequential double proton loss double electron transfer (SdPLdET) processes was investigated. Obtained results indicate that phloretic acid possesses potential for inactivating radicals of different characteristics (HOâ, HOOâ, CH3Oâ, CH3OOâ, CH2=CH-O-Oâ, PhOâ, Cl3COOâ etc.) via dHAT and SdPLdET mechanisms. Because phloretic acid is usually better absorbed than its precursor molecules, it may contribute to health benefits associated with regular intake of polyphenol-rich diet by direct scavenging of radicals. [ABSTRACT FROM AUTHOR]

Published
2016
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2. Carboxyl Group as a Radical Scavenging Moiety: Thermodynamics of 2H+/2e– Processes of Phloretic Acid

Author

Bono Lučić, Ana Amić, Zoran Marković, and Dragan Amić

Subjects
Radical, 010401 analytical chemistry, Thermodynamics, 04 agricultural and veterinary sciences, General Chemistry, Hydrogen atom, phloretic acid, radical scavenging, DFT, dHAT, SdPLdET, 040401 food science, 01 natural sciences, 0104 chemical sciences, chemistry.chemical_compound, Electron transfer, 0404 agricultural biotechnology, Proanthocyanidin, chemistry, Polyphenol, Moiety, Molecule, Phloretic acid
Abstract

Phloretic acid is one of the most abundant colon catabolites of various classes of polyphenols (e.g., polymeric proanthocyanidins, tea catechins, and ellagitannins). In this paper thermodynamics of 2H+/2e– radical scavenging mechanisms of phloretic acid was studied. For the first time the involvement of carboxyl group in double hydrogen atom transfer (dHAT), double electron transfer-proton transfer (dET-PT) and sequential double proton loss double electron transfer (SdPLdET) processes was investigated. Obtained results indicate that phloretic acid possesses potential for inactivating radicals of different characteristics (HO•, HOO•, CH3O•, CH3OO•, CH2=CH–O–O•, PhO•, Cl3COO• etc.) via dHAT and SdPLdET mechanisms. Because phloretic acid is usually better absorbed than its precursor molecules, it may contribute to health benefits associated with regular intake of polyphenol-rich diet by direct scavenging of radicals. This work is licensed under a Creative Commons Attribution 4.0 International License.

Published
2016

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