Back to results
US 4,308,291 AGranted
Process for decaffeinating green coffee
AssigneeHAG Aktiengesellschaft
InventorsPeter Werkhoff, Peter Hubert
Life of this patent
Estimating the term…
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.
Claims6
A process for decaffeinating green coffee comprising
- extracting green coffee with at least one acetal of the general formula ##STR3## 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 extracted green coffee.
Dependencies are inferred from the claim text.