Animal feed supplement prepared from wet corn bran and corn steep liquor

US4859485A · kind A · utility

Assignee

• John Labatt Limited · CA

Inventors

• John H. Linton · London, CA
• Nick Hussar · London, CA

Key dates

• Filing date: May 6, 1987
• Grant date: Aug 22, 1989
• Expiry date: May 6, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S426/807
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

An animal feed supplement is produced from wet corn bran and corn steep liquor exiting a wet corn milling process. Wet corn bran is mechanically dewatered to 30 to 50% solids by weight and then thoroughly mixed with concentrated corn steep liquor having 40 to 55% solids by weight in a ratio of 3:1 to 1:1 to produce a mixture having 35 to 50% solids by weight. This mixture is compacted to form a moist, cohesive, friable, readily transportable mass having a bulk density of 50 to 65 lbs. per cubic foot, a pH of less than 4.5 and a protein content of at least 20% on a dry matter basis. The compacted mass may be permitted to undergo natural fermentation that is substantially anaerobic to a pH of less than 4.25 to produce an animal feed supplement that is microbiologically and gravitationally stable from two weeks to seven months. This process results in significant energy saving and reduction in pollution, and allows using corn bran and steep liquor from a wet corn milling plant as actually produced in normal operation of the plant.