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• W4211008834 abstract "Ocean acidification impacts the iron (Fe) biogeochemistry both by its redox and its complexation reactions. This has a direct effect on the ecosystems due to Fe being an essential micronutrient. Polyphenols exudated by marine microorganisms can complex Fe(III), modifying the Fe(II) oxidation rates as well as promoting the reduction of Fe(III) to Fe(II) in seawater. The effect of the polyphenol gallic acid (GA; 3,4,5-trihydroxy benzoic acid) on the oxidation and reduction of Fe was studied. The Fe(II) oxidation rate constant decreased, increasing the permanence of Fe(II) in solutions at nM levels. At pH = 8.0 and in the absence of gallic acid, 69.3% of the initial Fe(II) was oxidized after 10 min. With 100 nM of gallic acid (ratio 4:1 GA:Fe), and after 30 min, 37.5% of the initial Fe(II) was oxidized. Fe(III) is reduced to Fe(II) by gallic acid in a process that depends on the pH and composition of solution, being faster as pH decreases. At pH &gt; 7.00, the Fe(III) reduction rate constant in seawater was lower than in NaCl solutions, being the difference at pH 8.0 of 1.577 × 10 –5 s –1 . Moreover, the change of the Fe(III) rate constant with pH, within the studied range, was higher in seawater (slope = 0.91) than in NaCl solutions (slope = 0.46). The Fe(III) reduction rate constant increased with increasing ligand concentration, being the effect higher at pH 7.0 [ k ′ = 1.078 × 10 –4 s –1 ; (GA) = 250 nM] compared with that at pH 8.0 [ k ′ = 3.407 × 10 –5 s –1 ; (GA) = 250 nM]. Accordingly, gallic acid reduces Fe(III) to Fe(II) in seawater, making possible the presence of Fe(II) for longer periods and favoring its bioavailability." @default.
• W4211008834 created "2022-02-13" @default.
• W4211008834 creator A5034705923 @default.
• W4211008834 creator A5050840322 @default.
• W4211008834 creator A5069001766 @default.
• W4211008834 creator A5080514509 @default.
• W4211008834 date "2022-02-11" @default.
• W4211008834 modified "2023-10-18" @default.
• W4211008834 title "Ocean Acidification Effect on the Iron-Gallic Acid Redox Interaction in Seawater" @default.
• W4211008834 cites W1519016208 @default.
• W4211008834 cites W1524162397 @default.
• W4211008834 cites W1562491010 @default.
• W4211008834 cites W1657162301 @default.
• W4211008834 cites W1681234379 @default.
• W4211008834 cites W1921011474 @default.
• W4211008834 cites W1963518908 @default.
• W4211008834 cites W1971945883 @default.
• W4211008834 cites W1972060131 @default.
• W4211008834 cites W1974433565 @default.
• W4211008834 cites W1976527105 @default.
• W4211008834 cites W1976875624 @default.
• W4211008834 cites W1977941415 @default.
• W4211008834 cites W1977961278 @default.
• W4211008834 cites W1978248285 @default.
• W4211008834 cites W1983509888 @default.
• W4211008834 cites W1984268986 @default.
• W4211008834 cites W1984739331 @default.
• W4211008834 cites W1986244455 @default.
• W4211008834 cites W1986254796 @default.
• W4211008834 cites W1987097020 @default.
• W4211008834 cites W1987359980 @default.
• W4211008834 cites W1988161715 @default.
• W4211008834 cites W1988980816 @default.
• W4211008834 cites W1990471776 @default.
• W4211008834 cites W1998012305 @default.
• W4211008834 cites W2000927924 @default.
• W4211008834 cites W2001658868 @default.
• W4211008834 cites W2002643463 @default.
• W4211008834 cites W2003410494 @default.
• W4211008834 cites W2004293011 @default.
• W4211008834 cites W2007867745 @default.
• W4211008834 cites W2008265007 @default.
• W4211008834 cites W2008455490 @default.
• W4211008834 cites W2010821874 @default.
• W4211008834 cites W2011550240 @default.
• W4211008834 cites W2014077506 @default.
• W4211008834 cites W2015303503 @default.
• W4211008834 cites W2017800663 @default.
• W4211008834 cites W2018812226 @default.
• W4211008834 cites W2022676475 @default.
• W4211008834 cites W2023404435 @default.
• W4211008834 cites W2023496836 @default.
• W4211008834 cites W2024584275 @default.
• W4211008834 cites W2025700565 @default.
• W4211008834 cites W202963727 @default.
• W4211008834 cites W2030827522 @default.
• W4211008834 cites W2034273201 @default.
• W4211008834 cites W2035632898 @default.
• W4211008834 cites W2036858336 @default.
• W4211008834 cites W2037669529 @default.
• W4211008834 cites W2039124429 @default.
• W4211008834 cites W2039580629 @default.
• W4211008834 cites W2041197898 @default.
• W4211008834 cites W2042283869 @default.
• W4211008834 cites W2044269306 @default.
• W4211008834 cites W2045778992 @default.
• W4211008834 cites W2047988525 @default.
• W4211008834 cites W2057389213 @default.
• W4211008834 cites W2060012482 @default.
• W4211008834 cites W2062904581 @default.
• W4211008834 cites W2065485994 @default.
• W4211008834 cites W2066012218 @default.
• W4211008834 cites W2066710019 @default.
• W4211008834 cites W2071564796 @default.
• W4211008834 cites W2071866695 @default.
• W4211008834 cites W2080864890 @default.
• W4211008834 cites W2082793843 @default.
• W4211008834 cites W2086959952 @default.
• W4211008834 cites W2086979352 @default.
• W4211008834 cites W2088328554 @default.
• W4211008834 cites W2088685084 @default.
• W4211008834 cites W2091642629 @default.
• W4211008834 cites W2092341931 @default.
• W4211008834 cites W2093375188 @default.
• W4211008834 cites W2097768016 @default.
• W4211008834 cites W2103551041 @default.
• W4211008834 cites W2104613499 @default.
• W4211008834 cites W2113297575 @default.
• W4211008834 cites W2117934439 @default.
• W4211008834 cites W2126154479 @default.
• W4211008834 cites W2129708742 @default.
• W4211008834 cites W2132555791 @default.
• W4211008834 cites W2138562665 @default.
• W4211008834 cites W2141208946 @default.
• W4211008834 cites W2142221988 @default.
• W4211008834 cites W2151431560 @default.
• W4211008834 cites W2154836565 @default.
• W4211008834 cites W2157558148 @default.
• W4211008834 cites W2169177413 @default.
• W4211008834 cites W2233474005 @default.

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