Oilseed processing
First Claim
1. A process for the production of a protein concentrate for a dehulled, defatted oleaginous thioglucoside and phenolic containing seed material, in which the protein has not been subjected to denaturing conditions, comprising the steps of:
- (a) contacting said seed material with an aqueous-lower alkanol solvent solution to thereby selectively extract glucosinolates, phenolic compounds and pigments therefrom at a temperature below 60°
C. and under conditions so as to prevent oxidation of said phenolic compounds and inhibiting enzymic degradation of glucosinolates;
(b) separating the liquid extract phase from a solid residue; and
(c) drying the solid residue at a temperature below about 60°
C. to thereby recover said protein concentrate.
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Accused Products
Abstract
A process for producing a detoxified protein concentrate product from defatted oilseeds, particularly those of the thioglucoside and phenolic containing types such as rapeseed, mustard or Crambe, in which dehulled, defatted seeds are extracted with an aqueous alcohol solvent under substantially non-oxidizing conditions, so as to prevent oxidation of the contained phenolic compounds and inhibit enzymic degradation of the glucosinolates. The solid residue of the extraction is dried at a temperature below about 60° C.
114 Citations
11 Claims
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1. A process for the production of a protein concentrate for a dehulled, defatted oleaginous thioglucoside and phenolic containing seed material, in which the protein has not been subjected to denaturing conditions, comprising the steps of:
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(a) contacting said seed material with an aqueous-lower alkanol solvent solution to thereby selectively extract glucosinolates, phenolic compounds and pigments therefrom at a temperature below 60°
C. and under conditions so as to prevent oxidation of said phenolic compounds and inhibiting enzymic degradation of glucosinolates;(b) separating the liquid extract phase from a solid residue; and (c) drying the solid residue at a temperature below about 60°
C. to thereby recover said protein concentrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A detoxified protein concentrate, prepared from a thioglucoside and phenolic-containing oilseed, containing about 65% to 70% protein, 0.1-0.3% fat and not more than 5.5% crude fibre, characterized by bland flavour. off-white colour, a nitrogen solubility index of at least 30%, a Nitrogen Free Extract in the range about 14.7 to 17.1 and a P.E.R. at least as high as that of casein.
Specification