Decolorized crosslinked products and method for decolorization o

Details Decolorized crosslinked products and method for decolorization o Decolorized crosslinked products and method for decolorization o

1992-05-18

1993-12-14

Brown, Johnnie R.

Chemistry: natural resins or derivatives; peptides or proteins;

Peptides of 3 to 100 amino acid residues

530378, 530356, 530354, 536 20, 536 553, 536127, 426656, 426657, 426658, 426573, 426601, A61K 3702, C08B 3708

Patent

active

052704467

ABSTRACT:
A crosslinked product of a primary amino group-containing compound such as proteins, chitosan or a mixture thereof is disclosed. The product has a crosslinked structure formed by crosslinking with an iridoid compound, and the blue color developed by the crosslinking is decolorized. Also, a method for decolorization of the above crosslinked product is disclosed. The method comprises reacting a crosslinked product obtained by crosslinking a primary amino group-containing compound with an iridoid compound, with at least one decolorizing agent selected from the group consisting of an oxidizing agent, a reducing agent and a reductone. The decolorized product and the method for decolorization according to the present invention can be broadly applied in the fields of foodstuffs, cosmetics, pharmaceuticals and the like where blue tone coloration is undesirable.

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Fujikawa et al, Genipin, A New Type of Protein Crosslinking Reagent from Gardenia Fruits, Agricultural and Biological Chemistry, The Agricultural Chemical Society of Japan, vol. 52, Mar. 1988, pp. 869-870.

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