Inventors:
Hualin Li - Newark DE
Mongia Gagan - Newark DE
C. Paul Malone - Newark DE
Robert W. Keown - Newark DE
International Classification:
A23L 127
A23L 1275
Abstract:
The staining effect (particularly with respect to the staining of polyamides) of a colorant such as a dye used in foods and beverages is inhibited by a compound of the formula ##STR1## wherein: Z. sup. 1, Z. sup. 2, and Z. sup. 3 are the same or different and are each a bridging radical or a direct bond, Ar. sup. 1, Ar. sup. 2, and Ar. sup. 3 are the same or different and are aromatic or bicyclic radicals; Q is a fused, partially aromatic bicyclic radical, or Q is a carbohydrate residue having a non-repeating structure, in which case m is 1, or Q is a carbohydrate having repeating saccharide units, in which case Q along with its substituents is repeated m times, where m is the number of said repeating saccharide units, but when Q is not a carbohydrate residue, m is 1; R. sup. 1, R. sup. 2, and R. sup. 3 are H or polyhydroxybenzoyl, R. sup. 4, R. sup. 5 and R. sup. 6 are H or the residue of an esterified alcohol, x, y, and z are from 2 to 3, a, b, and c are from 0 to 1, n is from 0 to 1, except that when Q is an oligo- or polysaccharide having terminal saccharide units, n, in the terminal saccharide units, is from 0 to 2, and when n is zero, --Z. sup. 1 --Q. sub. m --Z. sup.
