21 CFR 173.50
§ 173.50 Polyvinylpolypyrrolidone.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 173.50, § 173.50 Polyvinylpolypyrrolidone, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/85098
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Full text
The food additive polyvinylpolypyrrolidone may be safely used in accordance with the following prescribed conditions:
(a) The additive is a homopolymer of purified vinylpyrrolidone catalytically produced under conditions producing polymerization and cross-linking such that an insoluble polymer is produced.
(b) 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.
(c) It is used or intended for use as a clarifying agent in beverages and vinegar, followed by removal with filtration.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.