Process for extracting carbonylated compounds from a drink by liquid-solid extraction with a functionalized inert support

Extraction process according to any of claims to 3, characterized in that the functional nitrogenous, nucleophilic groups are chosen from the group consisting of hydroxylamines of RONH2 type in which R is an alkyl or aryl group;

• derivatives of hydrazines, advantageously hydrazines of formula RNHNH2 in which R is an alkyl or aryl group, sulfonylhydrazines of formula RSO2NHNH2 in which R is an alkyl or ayrl group, semicarbazides and 2,4-dinitrophenylhydrazine;
• and diamines in which the nitrogen atoms are separated by an ethylene group and are substituted by identical or different groups.

Extraction process according to any of claims to 4, characterized in that the functional nitrogenous, nucleophilic groups are chosen from among phenylsulfonylhydrazine and O-benzylhydroxylamine.

Extraction process according to any of the preceding claims, characterized in that the support is a support insoluble in the beverage, is organic or inorganic, and is advantageously of millimeter size.

Extraction process according to any of the preceding claims, characterized in that the functionalization rate of the support lies between 0.75 and 4.5 mmol/g.

Extraction process according to any of the preceding claims, characterized in that the quantity of support ranges from 1 to 15 g per liter of beverage.