Document Type

Patent

Publication Date

12-25-2012

Abstract

A process of extracting procyanidins by alkaline hydrolysis is described. In particular, a procyanidin-containing material, pomace or residue is treated with an alkali, such as sodium or potassium hydroxide, for a predetermined amount of time and at a predetermined temperature to release procyanidins bound to polysaccharides and/or proteins of the cell wall or depolymerize polymeric procyanidins. After the procyanidins are released by alkaline hydrolysis, the extracts are acidified to obtain a pH level where the procyanidins do not degrade. The process of extracting procyanidins may be utilized to estimate the total amount of bound procyanidins in a plant material, enhance the bioavailability of beneficial procyanidins monomers and/or to treat the residue remaining after conventional solvent extraction for increased procyanidin extraction.

Department

Food Science

Patent Number

US8337909

Application Number

US20110301232

Application Published

12-8-2011

Application Filed

6-4-2010

Assignee

Board of Trustees of the University of Arkansas (Fayetteville, AR)

Comments

Luke R. Howard, Department of Food Science, University of Arkansas, Fayetteville, AR

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