Process for the production of concentrated extracts from plants

US4632837A · kind A · utility

Assignees

• SKW Trostberg Aktiengesellschaft · DE
• Haarmann & Reimer Corporation · DE

Inventors

• Erwin Schutz · Palling, DE
• Heinz-Rudiger Vollbrecht · Cham, DE
• Klaus Sandner · Trostberg, DE
• Theodor Sand · Holzminden, DE
• Peter Muhlnickel · Holzminden, DE

Key dates

• Filing date: Sep 18, 1984
• Grant date: Dec 30, 1986
• Expiry date: Sep 18, 2004

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23L27/11
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention provides a process for the production of concentrated extracts from fresh plants or parts thereof by extraction with carbon dioxide at supercritical pressure, wherein the extraction is carried out at 0.degree. to 40.degree. C. and the separation of the concentrated extract is carried out at a subcritical temperature and subcritical pressure.