Title: Compositions and process for colored liquid food or drink

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Claims: Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A purple-colored-grape-flavored liquid food or beverage having a coloration between red and blue and having a pH under 4.2, comprising water, an edible soluble or dispersible protein, erythrosine, and a potable liquid purple-colored-grape-flavored beverage base, said protein being stained by said erythrosine and dispersed throughout said liquid food or beverage.

2. A colored liquid food or beverage of claim 1, in which the protein selected from the group is consisting of vegetable proteins, animal proteins, salts derived from such proteins, and combinations thereof.

3. The process of imparting a bluish-red coloration to a liquid food or beverage having a pH under 4.2, comprising combining water, edible soluble or dispersible protein, erythrosine, and acid to provide said liquid food or beverage, wherein said acid is in an amount effective to provide a pH under 4.2, and said protein is in an amount sufficient to prevent precipitation of said erythrosine.

4. The process of claim 3, in which the protein is selected from the group consisting of vegetable proteins, animal proteins, salts derived from such proteins, and combinations thereof.

5. A purple-colored-grape-flavored liquid food or beverage having a coloration between red and blue and having a pH under 4.2, comprising water, an edible soluble or dispersible protein and erythrosine, said protein being stained by said erythrosine and dispersed throughout said liquid food or beverage.

6. A liquid food or beverage of claim 5, in which the protein is selected from the group consisting of vegetable proteins, animal proteins, salts derived from such proteins, and combinations thereof.

Other info:

Inventors: Danforth, Richard C. (Philadelphia, PA, US)

Application Number: 808731
Filing Date: 1977-06-22
Publication_date: 1979-09-11
Assignee:
Primary Class(es): 426/250 426/540, 426/590
Other Classes:
US Patent Ref:

3425841	Feb, 1969	Handwerk et al.	426/540.
3483002	Dec, 1969	Stein	426/250.
3525624	Aug, 1970	Rubenstein	426/590.
3769041	Oct, 1973	Levinson et al.	426/250.

Other Refs:
Primary Examiner: Hunter, Jeanette M.
Assistant Examiner:
Attorney: Chovanes; Eugene, Jackson; Edward Lovett