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Molecular Biology

Process-for-removing-polyphenols-in-vegetable-beverages

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Process for removing polyphenols in vegetable beverages

Details

Inventors: Matsuda, Shogo; Kuriki, Tomio; Ohue, Kazuto; Okajima, Kunihiko;
Assignee: Asahi Kasei Kogyo Kabushiki Kaisha (Osaka, JA)
Primary Examiner: Weinstein; Steven L.
Assistant Examiner:
Attorney, Agent or Firm: Armstrong, Nikaido & Wegner

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.

DETAILED DESCRIPTION In accordance with the present invention, there is provided an adsorbent material in the form of finely divided powders or flakes for removal of polyphenols present in vegetable beverages, consisting essentially of a polyamide or a mixture of polyamides 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 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.

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