Process for producing protein preparations from sunflower seeds and protein preparations produced therefrom

US12310385B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Peter Eisner · Freising, DE
• Stephaine Mittermaier · Freising, DE
• Andreas Stäbler · Freising, DE

Key dates

• Filing date: Nov 14, 2019
• Grant date: May 27, 2025
• Expiry date: Jun 7, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23L5/20
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

In a process for producing protein preparations from sunflower seeds a protein-containing flour made of dehulled and deoiled sunflower seeds preferably having a protein solubility in water at pH 6 of >15% by mass and/or at pH 7 of >25% by mass relative to the protein content in the flour is subjected to at least one extraction step with water at a pH of more than 4 and less than 9 to obtain a liquid phase as an extract and a solids-rich phase as a raffinate. Before and/or during the extraction step the oxygen concentration in the water is reduced to a value <7 mg/l and/or an oxidation activity is reduced by addition of antioxidant components to the water.After separation of the extract and the raffinate the extract is concentrated and/or dried to obtain a protein preparation having a high protein content. The process makes it possible to obtain qualitatively high-grade and sensorily appealing light-coloured protein preparations having a protein content greater than 75% by mass.