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Flavonoid Sulfation: Phytochemistry, Enzymology and Molecular Biology

  • Luc Varin
Part of the Recent Advances in Phytochemistry book series (RAPT, volume 26)

Abstract

Sulfate ester formation is the most recently recognized conjugation reaction of flavonoid compounds. Although the first sulfated compound was reported as early as 1937,1 it was not until 1975 that flavonoid sulfate esters have been considered to be of common occurrence in a number of plant families.2-5 In a recent review,6 however, more than 100 sulfated flavonoids have been reported in 250 species belonging to 17 dicotyledon and 16 monocotyledon families. Most of these compounds are mono-to tetrasulfate esters of common hydroxyflavones and hydroxyflavonols or their methyl ethers, and less commonly of their glucosylated derivatives. In some flavonoid glycosides, the sulfate group may be linked to the 3- or 6-position of the sugar moiety. Because of instability of the sulfate ester bond, especially in acid media, many sulfated flavonoids may have escaped detection, and the sulfate esters of flavonoid classes other than flavones and flavonols have yet to be described.

Keywords

Sulfate Group Sugar Moiety Sulfate Ester Sulfur Trioxide Sulfate Donor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Luc Varin
    • 1
  1. 1.Department of BiochemistryUniversity of MontréalMontréalCanada

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