Method for decaffeinating tea

US7858138B2 · kind B2 · utility

Assignee

• NATECO2 GmbH & Co. KG · DE

Inventors

• Manfred Gehrig · Wolnzach, DE
• Stefan Geyer · Dresden, DE
• Josef Schulmeyr · Wolnzach, DE
• Birgit Forchhammer · Neustadt, DE
• Karin Simon · Brackenheim, DE

Key dates

• Filing date: Jul 8, 2005
• Grant date: Dec 28, 2010
• Expiry date: Apr 28, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23F3/366
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for decaffeinating tea (Camellia sinensis). The method involves of using, as an extraction agent, a carbon dioxide which is compressed of a pressure greater than 50 and up to 100 MPa.