@article{9ded4bd7d06f4e3f97f2975aabaf6ad3,
title = "Pulse radiolysis studies of mangiferin: A C-glycosyl xanthone isolated from Mangifera indica",
abstract = "Pulse radiolysis technique has been employed to study the reaction of different oxidizing and reducing radicals with mangiferin. The reaction of *OH radical showed the formation of transient species absorbing in 380-390 and 470-480 nm region. The reaction with specific one-electron oxidants (N 3*, CCl3O2*) also showed the formation of similar transient absorption bands and is assigned to phenoxyl radicals. The pKa values of the transient species have been determined to be 6.3 and 11.9. One-electron oxidation potential of mangiferin at pH 9 has been found to be 0.62 V vs. NHE. The reaction of eaq - showed the formation of transient species with λ max at 340 nm, which is assigned to the ketyl anion radical formed on addition of eaq- at carbonyl site. Reactions of one-electron oxidised mangiferin radicals with ascorbic acid have also been studied. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.",
author = "B. Mishra and K.I. Priyadarsini and M. Sudheerkumar and M.K. Unnikrishhnan and H. Mohan",
note = "Cited By :15 Export Date: 10 November 2017 CODEN: RPCHD Correspondence Address: Priyadarsini, K.I.; Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; email: kindira@apsara.barc.ernet.in Chemicals/CAS: mangiferin, 4773-96-0 References: Barik, A., Priyadarsini, K.I., Mohan, H., Redox reactions of 2-hydroxy-3-methoxybenzaldehyde (o-vanillin) in aqueous solution (2004) Radiat. Phys. Chem., 70, pp. 687-696; Bhattacharya, S.K., Sanyal, A.K., Ghosal, S., Monoamine oxidase inhibiting activity of mangiferin isolated from Canscora decussata (1972) Naturwissenschaften, 59, pp. 651-655; Cai, Z., Li, X., Katsumura, Y., Interaction of hydrated electron with dietary flavonoids and phenolic acids: Rate constants and transient spectra studied by pulse radiolysis (1999) Free. Radic. Bio. 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year = "2006",
doi = "10.1016/j.radphyschem.2005.05.015",
language = "English",
volume = "75",
pages = "70--77",
journal = "Radiation Physics and Chemistry",
issn = "0969-806X",
publisher = "Elsevier Science Inc., Tarrytown, NY, United States",
number = "1",
}