Process for reducing the oxidation of food products by electrochemical extraction of oxygen

US6180146A · kind A · utility

Assignee

• L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude · FR

Inventors

• Pascal Del Gallo · Étampes, FR
• Gilles Lagrange · Les Ulis, FR
• Lucie Prost · Viroflay, FR

Key dates

• Filing date: Jul 2, 1999
• Grant date: Jan 30, 2001
• Expiry date: Jul 2, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D71/024
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process is provided for treating food products in order to reduce or eliminate the detrimental effects of the presence of oxygen in the atmosphere which is in contact with the products and, more particularly, the external surface of the products. A non-zero quantity of oxygen is extracted from the atmosphere by implementing a solid electrolyte which is an O.sup.2- ion conductor and is essentially impermeable to the gases. The invention has applicability to preserving frying oil baths.