Process of lowering the redox potential of a liquid by gas injection, while avoiding foaming

• Main Authors: JALLAIS, SIMON, IBARRA, DOMINIQUE
• Format: Patent
• Language: English; French; German
• Published: 09.01.2008
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLICBEVERAGES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; SEPARATION; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR RELEVANT APPARATUS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING

The process for treating an alimentary liquid e.g. orange juice using a gaseous mixture e.g. hydrogen, comprises injecting the mixture in the liquid to reduce a redox potential thus avoiding the phenomenon of foaming, and contacting the liquid and the gaseous mixture in a column, which is traversed by each of two fluids. The liquid and the gaseous mixture traverse the column with counter-current. The column is an empty structure of any material and then the liquid/gas exchange is carried out on a droplet surface of the liquid falling in the column. The process for treating an alimentary liquid e.g. orange juice using a gaseous mixture e.g. hydrogen, comprises injecting the mixture in the liquid to reduce a redox potential thus avoiding the phenomenon of foaming, and contacting the liquid and the gaseous mixture in a column, which is traversed by each of two fluids. The liquid and the gaseous mixture traverse the column with counter-current. The column is an empty structure of any material and then the liquid/gas exchange is carried out on a droplet surface of the liquid falling in the column, or the column is partially filled of structured or disordered garnish material, and then liquid/gas exchange is carried out within the garnish material. The value of redox potential after the treatment is higher than 100 mV to the initial value of the liquid. Selon l'invention, on réalise le contact entre le liquide à traiter et le mélange gazeux dans une colonne, parcourue simultanément par chacun des deux fluides.