§173.50. Polyvinylpolypyrrolidone.
21 C.F.R. § 173.50
The food additive polyvinylpolypyrrolidone may be safely used in accordance with the following prescribed conditions:
The additive is a homopolymer of purified vinylpyrrolidone catalytically produced under conditions producing polymerization and cross-linking such that an insoluble polymer is produced.
The food additive is so processed that when the finished polymer is refluxed for 3 hours with water, 5 percent acetic acid, and 50 percent alcohol, no more than 50 parts per million of extractables is obtained with each solvent.
It is used or intended for use as a clarifying agent in beverages and vinegar, followed by removal with filtration.
Notes, amendments, and revision history
Authority
Authority: 21 U.S.C. 321, 342, 348.
Source
Source: 42 FR 14526, Mar. 15, 1977, unless otherwise noted.