Danisco Sweeteners Oy

Danisco Finland Oy

Jari Tiihonen

Hannu A Paananen

Erkki Paatero

Heikki Heikkilä

Vili Ravanko

Heikki Heikkil&auml;

Juho Jumppanen

Ari Kärki

Tiina Tervala

Ari K&auml;rki

Heikki Mononen

Nina Mäyrä

The invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly acid cation exchange resin is utilized. The weakly acid cation exchange resin is used for separation of hydrophobic saccharides, such as deoxy, methyl and anhydrosugars and anhydrosugaralcohols from more hydrophilic saccharides.

Use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates

The invention relates to sulphonated polymer resins, particularly polymer resins with a sulphonated shell layer, and the preparation thereof. Resins according to the invention are prepared by sulphonating a polymer in a non-swollen state with substantially pure gaseous sulphur trioxide substantially in the shell layer of the polymer particles. The polymer to be sulphonated can be for example a styrene-DVB copolymer. The resins according to the invention can be used for example as chromatographic resins, ion-exchange resins and catalyst resins.

Sulphonated polymer resin and preparation thereof

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Lappeenranta, Finland

Jari Tiihonen