Process for removing polyphenols in vegetable beverages
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsShogo Matsuda, Tomio Kuriki, Kazuto Ohue, Kunihiko Okajima
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Abstract
Vegetable beverages are clarified or stabilized by using an adsorbent material consisting essentially of a specified N-substituted polyamide or polyamide mixture. The specified polyamide is such that 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula -(CH.sub.2).sub.n -R where n is an integer of 1 to 4 and R is at least one member selected from a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.
Claims7
A process for removing polyphenols present in vegetable beverages which comprises bringing a vegetable beverage into contact with an adsorbent material in the form of finely divided porous powders or flakes, said adsorbent material consisting essentially of a polyamide containing recurring amide groups as an integral part of the main polymer chain or a mixture of polyamides containing recurring amide groups as an integral part of the main polymer chain in which 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula
- --(CH.sub.2).sub.n --R
- where n is an integer of 1 to 4 and R is at least one member selected from the group consisting of a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.
Dependencies are inferred from the claim text.