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Process of extraction of carbonyl compounds of a drink by extraction liquid-solid with a functionalized inert support

Reference

00456-01

Patents status

French Patent application FR0602486 filed on March 22, 2006 and entitled “Procédé d’extraction de composés carbonylés d’une boisson par extraction liquide-solide avec un support inerte fonctionnalis锝

Inventors

Hervé DELEUZE
Mélanie BLASI
Jean-Christophe BARBE
Denis DUBOURDIEU
Bernard MAILLARD

commercial status

Exclusive or non exclusive

Laboratory

Institut des sciences moléculaires (ISM, UMR5802), Bordeaux, France.

Description

CONTEXT

The present invention is relative to a process of selective liquid-solid extraction of carbonyl compounds contained on a beverage.

TECHNICAL DESCRIPTION

The present invention is relative to a process of selective liquid-solid extraction of carbonyl compounds contained on a beverage. These carbonyl compounds are those combining with sulphur dioxide. The device consists in a specific molecule bound to an inert support (polymer or silica), which is used to significantly lower the amount of carbonyl compounds. The extraction can be advantageously done at ambient temperature, without shaking. There is no need to add a catalyst. Eventually, the specific extractive molecule remains bound to the inert support and can be easily removed from the processed drink. The organoleptic properties of the drink are preserved by the process.

INDUSTRIAL APPLICATIONS

The process according to the present invention is applied to the reduction in the combination power of sulphur dioxide on a fermented beverage such as wine or fruit juice.

Sulphur dioxide is widely used in oenology as a stabilizing agent, but the amount added is limited by the regulation because of its toxicity. The new process allows maximizing its preservative properties, thus limiting the amount present in the final product.

 


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