Functional food ingredient

Abstract

A novel functional food ingredient is provided. The functional food ingredient contains an unrefined plant protein material. The unrefined plant protein material of the functional food ingredient is obtained by hydrating a particulate or flaked unrefined plant protein material with at least 2 parts of water per part of unrefined plant protein material, partially denaturing at least a portion of plant protein contained in the hydrated unrefined plant protein material, and drying the hydrated partially-denatured unrefined plant protein material. In one embodiment, the dried partially-denatured unrefined plant protein material has a nitrogen solubility index of from about 30% to about 80% and at least one of the following properties: a salt tolerance index of from about 30% to about 80%; a water hydration capacity of at least 4 times the weight of the unrefined plant protein material; or a viscosity of at least 500 centipoise at a temperature of 15° C. to 25° C. In another embodiment, the dried partially-denatured unrefined plant protein material has at least one of the following properties: a gel weight of at least 30 grams at a temperature of from about 15° C. to about 25° C. in a 5 ounce aqueous slurry containing 5 parts water per part of unrefined plant protein material, by weight; or a refrigerated gel strength of at least 50 grams when combined with 5 parts of water per part of soy material, by weight. In a particularly preferred embodiment the unrefined plant protein material is an unrefined soy protein material, most preferably soy flour, soy grits, soy meal, or soy flakes.