[Code of Federal Regulations]
[Title 21, Volume 1]
[Revised as of April 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR73.125]
[Page 346-347]
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
SERVICES
PART 73 LISTING OF COLOR ADDITIVES EXEMPT FROM CERTIFICATION--Table of
Subpart A Foods
Sec. 73.125 Sodium copper chlorophyllin.
(a) Identity. (1) The color additive sodium copper chlorophyllin is
a green to black powder prepared from chlorophyll by saponification and
replacement of magnesium by copper. Chlorophyll is extracted from
alfalfa (Medicago sativa) using any one or a combination of the solvents
acetone, ethanol, and hexane.
(2) Color additive mixtures made with sodium copper chlorophyllin
may contain only those diluents that are suitable and are listed in this
subpart as safe for use in color additive mixtures for coloring foods.
(b) Specifications. Sodium copper chlorophyllin shall conform to the
following specifications and shall be free from impurities other than
those named to the extent that such impurities may be avoided by good
manufacturing practice:
(1) Moisture, not more than 5.0 percent.
(2) Solvent residues (acetone, ethanol, and hexane), not more than
50 parts per million, singly or, in combination.
(3) Total copper, not less than 4 percent and not more than 6
percent.
(4) Free copper, not more than 200 parts per million.
(5) Lead (as Pb), not more than 10 parts per million.
(6) Arsenic (as As), not more than 3 parts per million.
(7) Mercury (as Hg), not more than 0.5 part per million.
(8) Ratio of absorbance at 405 nanometers (nm) to absorbance at 630
nm, not less than 3.4 and not more than 3.9.
(9) Total copper chlorophyllins, not less than 95 percent of the
sample dried at 100 [deg]C for 1 hour.
(c) Uses and restrictions. Sodium copper chlorophyllin may be safely
used to color citrus-based dry beverage mixes in an amount not exceeding
0.2 percent in the dry mix.
(d) Labeling requirements. The label of the color additive and any
mixtures prepared therefrom shall conform to
[[Page 347]]
the requirements of Sec. 70.25 of this chapter.
(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.
[67 FR 35431, May 20, 2002]
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