Selective binding of potassium and calcium ions to novel cyclic proanthocyanidins in wine by HPLC-HRMS.

@article{Longo2018SelectiveBO,
  title={Selective binding of potassium and calcium ions to novel cyclic proanthocyanidins in wine by HPLC-HRMS.},
  author={Edoardo Longo and Fabrizio Rossetti and Vakare Merkyte and Agnieszka Obiedzińska and Emanuele Boselli},
  journal={Rapid communications in mass spectrometry : RCM},
  year={2018}
}
RATIONALE Cyclic B-type (referred also as crown) proanthocyanidins were recently identified in wines. An HPLC-HRMS/MS method was applied to study the binding of cyclic and non-cyclic PAC to potassium and calcium ions, which affect the chemico-physical stability of wines. Different binding affinities suggest that cyclic and non-cyclic analogues, despite the equal number of monomer units, influence the colloidal stability of wine and are related to the grape variety or winemaking conditions… CONTINUE READING
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