Process for decaffeinating green coffee

US4308291A · kind A · utility

Assignee

• HAG Aktiengesellschaft · DE

Inventors

• Peter Werkhoff · Ankum, DE
• Peter Hubert · Lemwerder, DE

Key dates

• Filing date: Dec 5, 1979
• Grant date: Dec 29, 1981
• Expiry date: Dec 5, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23F5/206
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

A process for decaffeinating green coffee comprising treating green coffee with at least one acetal of the general formula ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group and R.sup.2 and R.sup.3 are each a methyl group or an ethyl group, as an organic solvent, and removing solvent residues by steaming the treated green coffee.