(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 the requirements of
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]