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AssigneeSanraku Incorporated
InventorsYoshiaki Yagi, Kenichi Yamamoto, Yukio Tsuchiyama, Michikatsu Sato, Kouki Fujii, Tomoyuki Ishikura
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A cyclodextrin adsorbing material composed of a water-insoluble resin substrate to which a ligand having such a size as to be included by cyclodextrin is chemically bonded via a spacer radical; a method of separating and purifying cyclodextrin from an aqueous solution containing it, which comprises bringing said aqueous solution into contact with the above adsorbing material to adsorb cyclodextrin on the adsorbing material, and subjecting the adsorbing material to a desorption treatment to recover cyclodextrin; and a method of increasing the amount of cyclodextrin yielded, which comprises carrying out a cyclodextrin-forming reaction by an enzymatic method in the presence of the above adsorbent material.
A cyclodextrin adsorbing material composed of a water-insoluble resin substrate to which a ligand having such a size as to be included by cyclodextrin is chemically bonded via a spacer radical, said size of the ligand being such that when the shape of the ligand is taken as an ellipse just surrounding the entire atomic grouping of the ligand, the short diameter of the ellipse is within the range of about 4 to about 10 angstroms.
Dependencies are inferred from the claim text.