Food or edible material: processes – compositions – and products – Surface coating of a solid food with a liquid
Patent
1994-06-17
1996-08-06
Kepplinger, Esther M.
Food or edible material: processes, compositions, and products
Surface coating of a solid food with a liquid
426 92, 426 93, 426102, 426103, 426310, A23B 410, A23B 716, A23B 914, A21D 1508
Patent
active
055431640
ABSTRACT:
This invention describes new water-insoluble protein-based edible coatings and films having improved barrier and mechanical properties, and methods for their preparation from water-soluble proteins. In the invention, aqueous protein solutions are denatured with heat, chemicals and/or enzymes to induce thiol-disulfide interchange and thiol oxidation reactions, thereby forming new intermolecular and intramolecular disulfide crosslinkages. The formation of covalent intermolecular crosslinkages in protein-based edible films and coatings results in films having improved barrier and mechanical properties which are insoluble in water. Water-insoluble emulsion film systems can be formed by incorporating lipids into the denatured aqueous protein matrix.
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Krochta John M.
McHugh Tara H.
Kepplinger Esther M.
Koh Choon P.
The Regents of the University of California
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