The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1996
Filed:
Jun. 17, 1994
John M Krochta, Davis, CA (US);
Tara H McHugh, Albany, CA (US);
The Regents of the University of California, Oakland, CA (US);
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.