US 9,808,020 B2
Systems and methods for ozone treatment of toxin in grain
Kevin C. Johnson, Pocatello, ID (US); Lynn Johnson, American Falls, ID (US); Delron E. Albert, Aberdeer, ID (US); and Vane Case, Blackfoot, ID (US)
Assigned to Archer Daniels Midland Co., Decatur, IL (US)
Filed by Kevin C. Johnson, Pocatello, ID (US); Lynn Johnson, American Falls, ID (US); Delron E. Albert, Aberdeer, ID (US); and Vane Case, Blackfoot, ID (US)
Filed on Mar. 3, 2010, as Appl. No. 12/716,298.
Application 12/716,298 is a continuation in part of application No. 12/645,279, filed on Dec. 22, 2009.
Prior Publication US 2011/0151080 A1, Jun. 23, 2011
Int. Cl. A23B 9/18 (2006.01); A23L 3/3409 (2006.01)
CPC A23B 9/18 (2013.01) [A23L 3/3409 (2013.01); A23V 2002/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for downdraft ozone treatment of grain with minimal generation of ozone-related objectionable odors comprising:
separating the grain based on density into a first, more dense batch having mycotoxins and a second, less dense batch having mycotoxins, where the first, more dense batch has less mycotoxins than the second, less dense batch;
placing the second, less dense batch of the grain into a storage container;
providing a negative air pressure at a bottom of a volume of the second batch of the grain in the storage container;
placing ozone at a concentration exceeding 200 parts per million (ppm) in air above an upper surface of the volume of the second batch of the grain; and
drawing the ozone down into the volume of the second batch of the grain using the negative air pressure for a treatment time sufficient to effectively reduce toxins in the second batch of the grain without causing significant ozone-related commercially-objectionable foreign odors in the second batch of the grain.