Process of extracting stimulants from coffee

US4168324A · kind A · utility

Assignee

• HAG Aktiengesellschaft · DE

Inventors

• Ludwig Roselius · Bremen, DE
• Hans-Albert Kurzhals · Hambergen, DE
• Klaus F. Sylla · Bremen, DE
• Peter Hubert · Lemwerder, DE

Key dates

• Filing date: Feb 25, 1977
• Grant date: Sep 18, 1979
• Expiry date: Feb 25, 1997

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23F5/166
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of producing coffee low in undesired stimulants by removing coffee wax from unroasted coffee by the use of a supercritical fluid and absorbing the coffee wax in an absorbent precharged with pure caffeine.