Production of carotenoid preparations in the form of coldwater-dispersible powders, and the use of the novel carotenoid preparations

US5968251A · kind A · utility

Assignee

• BASF SE

Inventors

• Helmut Auweter · Schifferstadt, DE
• Heribert Bohn · Wattenheim, DE
• Herbert Haberkorn · Havelsee, DE
• Dieter Horn · Heidelberg, DE
• Erik Luddecke · Mutterstadt, DE
• Volker Rauschenberger · Eisenberg, DE

Key dates

• Filing date: Sep 8, 1997
• Grant date: Oct 19, 1999
• Expiry date: Sep 8, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/775
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Carotenoid preparations in the form of coldwater-dispersible powders are produced by PA1 a) preparing a molecular-disperse solution of a carotenoid, with or without an emulsifier and/or an edible oil, in a volatile, water-miscible, organic solvent at elevated temperature and adding therein an aqueous solution of a protective colloid, whereupon the hydrophilic solvent component is transferred into the aqueous phase, and the hydrophobic phase of the carotenoid results as nanodisperse phase, PA1 b) heating the resulting hydrosol at from 40.degree. C. to 90.degree. C., with or without cooling of the hydrosol to from 0.degree. C. to 30.degree. C. beforehand, and PA1 c) removing the solvent and the water from the heated hydrosol, and converting it into a water-dispersible dry powder.