[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR173.5]
[Page 121]
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
SERVICES (CONTINUED)
PART 173 SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN
Subpart A Polymer Substances and Polymer Adjuvants for Food Treatment
Sec. 173.5 Acrylate-acrylamide resins.
Acrylate-acrylamide resins may be safely used in food under the
following prescribed conditions:
(a) The additive consists of one of the following:
(1) Acrylamide-acrylic acid resin (hydrolyzed polyacrylamide) is
produced by the polymerization of acrylamide with partial hydrolysis, or
by copolymerization of acrylamide and acrylic acid, with the greater
part of the polymer being composed of acrylamide units.
(2) Sodium polyacrylate-acrylamide resin is produced by the
polymerization and subsequent hydrolysis of acrylonitrile in a sodium
silicate-sodium hydroxide aqueous solution, with the greater part of the
polymer being composed of acrylate units.
(b) The additive contains not more than 0.05 percent of residual
monomer calculated as acrylamide.
(c) The additive is used or intended for use as follows:
(1) The additive identified in paragraph (a) (1) of this section is
used as a flocculent in the clarification of beet sugar juice and liquor
or cane sugar juice and liquor or corn starch hydrolyzate in an amount
not to exceed 5 parts per million by weight of the juice or 10 parts per
million by weight of the liquor or the corn starch hydrolyzate.
(2) The additive identified in paragraph (a)(2) of this section is
used to control organic and mineral scale in beet sugar juice and liquor
or cane sugar juice and liquor in an amount not to exceed 2.5 parts per
million by weight of the juice or liquor.
[42 FR 14526, Mar. 15, 1977, as amended at 46 FR 30494, June 9, 1981]
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