Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Plant proteins – e.g. – derived from legumes – algae or...
Patent
1991-12-26
1993-10-19
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Plant proteins, e.g., derived from legumes, algae or...
426656, 530374, 530376, 530412, 530424, C07K 302, C07K 312, C07K 1510
Patent
active
052546730
ABSTRACT:
This invention pertains to methods for extracting and purifying zein, zein bodies, glutelins or destarched corn gluten from corn gluten meal by efficiently removing and recovering food grade pigments and starch hydrolysates, while discarding unwanted fractions. Corn gluten is subjected to the combination of enzymatic starch hydrolysis, alkaline treatment, alcohol washing and alcohol extraction to produce a substantially starch-free, deflavored and decolored zein which is suitable for use in foods and pharmaceuticals. An advantage of the process described herein is its use of food grade alcohol(s) to deflavor, decolorize and extract the zein from corn gluten meal. Purified zein and zein bodies have improved utility and functionality in a variety of existing and emerging food applications. Alternate products such as deflavored, decolored and destarched corn gluten, zein bodies or glutelins are also obtained by the methods of this invention and are useful as vegetable protein supplements. By-products of the invention such as yellow food pigments and starch hydrolysates can be further purified and/or used directly in various foods.
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Cook Richard B.
Mallee Frank M.
Shulman Mark L.
Opta Food Ingredients, Inc.
Russel Jeffrey E.
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