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Molecular Structure of the Photo-Oxidation Product of Ellagic Acid in Solution.

ABSTRACT: The photoreaction of the antioxidant ellagic acid (EA) elicits a drastic coloration in solution from colorless to yellow in aerated tetrahydrofuran, which appears as a new absorption band at 405 nm. Analysis of the X-ray crystal structure suggests that the photo-oxidation product of EA is a multiple cleavage π-structure (Ox-EA) that results from the interaction of EA with singlet oxygen followed by sequential cleavage and rearrangement steps.

SUBMITTER: Tokutomi H

PROVIDER: S-EPMC6645270 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Molecular Structure of the Photo-Oxidation Product of Ellagic Acid in Solution.

Tokutomi Hisashi H Takeda Takashi T Hoshino Norihisa N Akutagawa Tomoyuki T

ACS omega 20180914 9

The photoreaction of the antioxidant ellagic acid (EA) elicits a drastic coloration in solution from colorless to yellow in aerated tetrahydrofuran, which appears as a new absorption band at 405 nm. Analysis of the X-ray crystal structure suggests that the photo-oxidation product of EA is a multiple cleavage π-structure (Ox-EA) that results from the interaction of EA with singlet oxygen followed by sequential cleavage and rearrangement steps. ...[more]

PMID: 31459227

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