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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 21 - Food and Drugs |
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Chapter I - Food and Drug Administration, Department of Health and Human Services |
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SubChapter B - Food for Human Consumption |
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Part 173 - Secondary Direct Food Additives Permitted in Food for Human Consumption |
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Subpart A - Polymer Substances and Polymer Adjuvants for Food Treatment |
§ 173.50 - Polyvinylpolypyrrolidone.
Latest version.
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§ 173.50 Polyvinylpolypyrrolidone.
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.