Method of extracting coffee oil containing aroma constituents from roasted coffee

US4328255A · kind A · utility

Assignee

• Studiengesellschaft Kohle gGmbH · DE

Inventors

• Wilhelm Roselius · Bad Schandau, DE
• Otto Vitzthum · Bremen, DE
• Peter Hubert · Lemwerder, DE

Key dates

• Filing date: Jun 8, 1977
• Grant date: May 4, 1982
• Expiry date: Jun 8, 1997

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23F5/483
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of extracting coffee oil containing aromatic constituents in high yield and in stable form by extracting solid, roasted coffee with dry carbon dioxide under super-critical conditions of temperature and pressure.