GroundRules
21 CFR 173.50: Polyvinylpolypyrrolidone.
Where this section sits in the code
- Title 21—Food and Drugs
- CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES
- SUBCHAPTER B—FOOD FOR HUMAN CONSUMPTION
- PART 173—SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION
- Subpart A—Polymer Substances and Polymer Adjuvants for Food Treatment
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.
Collected 2026-08-27T02:24:47Z. Source file · JSON