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Elsevier, Tetrahedron Letters, 32(39), p. 5771-5774

DOI: 10.1016/s0040-4039(98)01205-2

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Bisulfite addition to anthocyanins: revisited structures of colourless adducts

This paper is available in a repository.
This paper is available in a repository.

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Abstract

Decolourization of anthocyanins by sulfur dioxide is investigated through the reaction between sodium bisulfite and malvidin 3-O-glucoside. The structural elucidation of the C-4 sulfonate adducts is established by 1H, 13C and 33S NMR spectroscopies.