The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2013
Filed:
May. 12, 2011
Hans Henning Wenk, Mulheim a. d. Ruhr, DE;
Mike Farwick, Essen, DE;
Stefan Bergfried, Essen, DE;
Ursula Maczkiewitz, Essen, DE;
Hans Henning Wenk, Mulheim a. d. Ruhr, DE;
Mike Farwick, Essen, DE;
Stefan Bergfried, Essen, DE;
Ursula Maczkiewitz, Essen, DE;
Evonik Goldschmidt GmbH, Essen, DE;
Abstract
The invention relates to a process for the preparation of a plant extract fromplants, characterized by the process steps process step A) liquid extraction ofrhizomes, process step B) optionally, separation of a curcuminoid-containing solid obtained by precipitation from the extraction mixture obtained in process step A), process step C) removal of solvents present from the extraction mixture obtained in process step A) or B) to obtain a concentrate and process step D) distillation of the concentrate at a pressure of less than 1 bar to give the extract as distillate.