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73.170 Grape skin extract (enocianina).

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[Code of Federal Regulations]

[Title 21, Volume 1]

[Revised as of April 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 21CFR73.170]

[Page 347]


                        TITLE 21--FOOD AND DRUGS






of Contents


                             Subpart A_Foods


Sec.  73.170  Grape skin extract (enocianina).

    (a) Identity. (1) The color additive grape skin extract (enocianina) 

is a purplish-red liquid prepared by the aqueous extraction (steeping) 

of the fresh deseeded marc remaining after grapes have been pressed to 

produce grape juice or wine. It contains the common components of grape 

juice; namely, anthocyanins, tartaric acid, tannins, sugars, minerals, 

etc., but not in the same proportions as found in grape juice. During 

the steeping process, sulphur dioxide is added and most of the extracted 

sugars are fermented to alcohol. The extract is concentrated by vacuum 

evaporation, during which practically all of the alcohol is removed. A 

small amount of sulphur dioxide may be present.

    (2) Color additive mixtures for food use made with grape skin 

extract (enocianina) may contain only those diluents listed in this 

subpart as safe and suitable in color additive mixtures for coloring 


    (b) Specifications. Grape skin extract (enocianina) shall conform to 

the following specifications:

Pesticide residues, not more than permitted in or on grapes by 

regulations promulgated under section 408 of the Federal Food, Drug, and 

Cosmetic Act.

Lead (as Pb), not more than 10 parts per million.

Arsenic (as As), not more than 1 part per million.

    (c) Uses and restrictions. Grape skin extract (enocianina) may be 

safely used for the coloring of still and carbonated drinks and ades, 

beverage bases, and alcoholic beverages subject to the following 


    (1) It may not be used to color foods for which standards of 

identity have been promulgated under section 401 of the act unless 

artificial color is authorized by such standards.

    (2) Its use in alcoholic beverages shall be in accordance with the 

provisions of parts 4 and 5, title 27 CFR.

    (d) Labeling requirements. The label of the color additive and any 

mixtures prepared therefrom intended solely or in part for coloring 

purposes shall conform to the requirements of Sec.  70.25 of this 

chapter. The common or usual name of the color additive is ``grape skin 

extract'' followed, if desired, by ``(enocianina)''.

    (e) Exemption from certification. Certification of this color 

additive is not necessary for the protection of the public health, and 

therefore batches thereof are exempt from the certification requirements 

of section 721(c) of the act.

Additives that reference this regulation:

Source: U.S. Code of Federal Regulations - CFR Title 21, Part 73, Section 170

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