Patent Number: 8,491,670

Title: Anthocyanin pigment/dye compositions and method of providing composition through extraction from corn

Abstract: Anthocyanin pigments/dyes are extracted from corn kernels by adding corn kernels with less than 5% by weight of corn kernels comprising broken kernels to an aqueous medium to form an aqueous-corn medium. The corn kernels have in excess of 0.1 mg of anthocyanin pigment/dye per gram of corn kernel therein. The anthocyanin pigment/dye in the corn kernels has greater than 40% by weight of anthocyanin as an acid or acylated form of the anthocyanin. The aqueous corn medium is agitated at a temperature above C. The solid corn kernels are separated from the aqueous corn medium to form an extract of anthocyanin in aqueous medium having less than 1.0% solids therein before concentration or purification steps are performed on the extract.

Inventors: Bertoldo de Barros; Regina Celia (Minneapolis, MN), French; Michele Ann (Saint Paul, MN), Rigelhof; Frederic John (Maple Grove, MN), French; Lee Kent (Lamberton, MN)

Assignee: Suntava, LLC

International Classification: C09B 61/00 (20060101)

Expiration Date: 2021-07-23 0:00:00