Removing and recovering plant polyphenols

Details Removing and recovering plant polyphenols Removing and recovering plant polyphenols

1989-09-27

1992-08-25

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

4263303, 4263304, 4263305, 426423, 210690, 210691, 210692, A23L 230, C12H 104, B01D 6158, B01D 6144

Patent

active

051416115

ABSTRACT:
Polyphenolic substances such as food dyes, tannins, fruit juices and wine colorings are removed from a solution by adsorption onto a regeneratable adsorbent polyamide of extended surface and controlled porosity. The surface chemistry of the polyamide may be modified by a glutaraldehyde/resorcinol treatment. The polyphenolic substances are recovered by elution with water or other protonic solvent.

REFERENCES:
patent: 2988782 (1960-06-01), Parrish et al.
patent: 3222180 (1965-12-01), Sucietto
patent: 3463763 (1969-03-01), Griffiths
patent: 3551351 (1970-12-01), Murray et al.
patent: 3711293 (1973-01-01), Geiger
patent: 3878310 (1975-04-01), Field et al.
patent: 4008339 (1977-02-01), Matsuda
patent: 4144373 (1979-03-01), Weiss et al.

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