Process of extracting oil from thin stillage

US10597645B2 · kind B2 · utility

Assignee

• Novozymes A/S · DK

Inventors

• Joseph Jump · Raleigh, US
• Nathaniel Kreel · Louisburg, US
• Bernardo Vidal, Jr. · Wake Forest, US
• Chee-Leong Soong · Raleigh, US
• Madison Roberts · Raleigh, US
• Melissa Carrie Hooss · Wake Forest, US
• Xinyu Shen · Wake Forest, US

Key dates

• Filing date: Dec 16, 2016
• Grant date: Mar 24, 2020
• Expiry date: Dec 16, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/74
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A process of recovering oil, comprising (a) converting a starch-containing material into dextrins with an alpha-amylase; (b) saccharifying the dextrins using a carbohydrate source generating enzyme to form a sugar; (c) fermenting the sugar in a fermentation medium into a fermentation product using a fermenting organism; (d) recovering the fermentation product to form a whole stillage; (e) separating the whole stillage into thin stillage and wet cake; (e′) optionally concentrating the thin stillage into syrup; (f) recovering oil from the thin stillage and/or optionally the syrup, wherein a protease and a phospholipase are present and/or added during steps (a) to (c). Use of a protease and a phospholipase for increasing oil recovery yields from thin stillage and/or syrup in a fermentation product production process.