US 4,820,420 A · Process for the secondary purification and stabilization of liquids containing polyphenols and/or proteins, particularly beverages and more especially beer

Abstract

The present invention concerns a process for secondary purification and stabilization of liquids containing polyphenols and/or proteins. The liquid to be treated is first subjected to a centrifuge, or similar apparatus, which performs the primary purification of the liquid. The treated liquid is then mixed with stabilizing means that adsorb the polyphenols and proteins and filter means that retain the fine turbidities contained within the liquid. The liquid mixture is then transferred to an alluvial filter apparatus in laminar flow wherein the filter means and stabilization means along with the adsorbed polyphenols and proteins form a filter cake. The purified liquid is then transported to subsequent treatment while the filter cake is subsequently treated with a solution which dissolves the polyphenols and protein thereby regenerating the stabilization means and the filter means.

Claims18

Dependent claims

A process for purification and stabiliation of liquids and beverages that contain polyphenols and proteins, wherein said liquid, after a primary purification, is mixed with a stabilization substance adsorbent of polyphenols and proteins, and the stabilization substance is partially regenerated and again recycled through the process, the improvement comprising the steps of:

(a) performing a primary purification of said liquid by centrifugation;
(b) utilizing a mixture of at least one of fibers and granulated material to form a filter material;
(c) adding said filter material and said stabilization substance to said liquid after the primary purification;
(d) transferring said liquid thus treated to a filter apparatus and filtering said liquid whereby said stabilization substance and said filter material form a solid cake on the bottom of the filter apparatus and the liquid is simultaneously stabilized and purified;
and thereafter
(e) regenerating said solid cake to reclaim said stabilization substance and said filter material and recyling said stabilization substance and said filter material through the process.

3 more elements

Dependencies are inferred from the claim text.

Process for the secondary purification and stabilization of liquids containing polyphenols and/or proteins, particularly beverages and more especially beer

Life of this patent

Process for the secondary purification and stabilization of liquids containing polyphenols and/or proteins, particularly beverages and more especially beer

Life of this patent

Abstract

Claims18