Removal of bitterness from citrus juices using a post-crosslinked adsorbent resin
March 20, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPolymeric adsorbents from vinylbenzyl chloride copolymer beads Uniform polymer beads and ion exchange resins therefrom prepared by post-crosslinking of lightly crosslinked beads Polymeric adsorbents from macroreticular polymer beads Preparation of citrus juices, concentrates and dried powders which are reduced in bitterness Removal of bitter naringin and limonin from citrus juices containing the same Upflow ion exchange treatment of natural edible juices containing high acidity and suspended solids Porous polymers Patent #: 4668709 InventorsApplicationNo. 326186 filed on 03/20/1989US Classes:426/422, Treatment of liquid with nongaseous material other than water per se426/271, INVOLVING ION EXCHANGE, SEQUESTERING OR CHELATING MATERIAL426/330.5, Fruit and vegetable juice426/333, Citrus fruit426/590, Beverage or beverage concentrate521/31, Solid polymer derived from ethylenically unsaturated reactant only521/33Treated with sulfur-containing materialExaminersPrimary: Czaja, Donald E.Assistant: Workman, D. Foreign Patent References
International ClassesA23L 002/30A23L 002/36 AbstractBitter components, such as limonin, may be effectively removed from citrus juices, particularly navel orange juices, by contacting the juices with an adsorbent resin. The adsorbent resin is derived from a copolymer of a monoethylenically unsaturated monomer and a crosslinking monomer, where the copolymer has been post-crosslinked in the swollen state in the presence of a Friedel-Crafts catalyst and functionalized with hydrophilic groups. Preferably, the copolymers are styrene and divinylbenzene.Field of SearchINVOLVING ION EXCHANGE, SEQUESTERING OR CHELATING MATERIALFruit and vegetable juice Citrus fruit Beverage or beverage concentrate Treatment of liquid with nongaseous material other than water per se Solid polymer derived from ethylenically unsaturated reactant only Treated with sulfur-containing material | |
