The addition of copper(II) ions to the system iron(III)-D-galacturonic acid strongly enhances the yield of the reduction of iron(III) to iron(II). In a copper(II)-iron(III)-D-galacturonic acid system with initial quantities in 4:1:5 relative ratios, iron reduction occurs almost quantitatively. The results found are explained by the formation of stable copper(II)-D-galacturonate complexes that leads to opening of the sugar molecule ring, with consequent formation of reducing aldehydic functional groups.
Iron(III) reduction by D-galacturonic acid. Part I. Influence of Copper(II) complexes formation / S., Deiana; C., Gessa; B., Manunza; P., Piu; Seeber, Renato. - In: JOURNAL OF INORGANIC BIOCHEMISTRY. - ISSN 0162-0134. - STAMPA. - 39:(1990), pp. 25-32. [10.1016/0162-0134(90)80012-M]
Iron(III) reduction by D-galacturonic acid. Part I. Influence of Copper(II) complexes formation
SEEBER, Renato
1990-01-01
Abstract
The addition of copper(II) ions to the system iron(III)-D-galacturonic acid strongly enhances the yield of the reduction of iron(III) to iron(II). In a copper(II)-iron(III)-D-galacturonic acid system with initial quantities in 4:1:5 relative ratios, iron reduction occurs almost quantitatively. The results found are explained by the formation of stable copper(II)-D-galacturonate complexes that leads to opening of the sugar molecule ring, with consequent formation of reducing aldehydic functional groups.
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