§173.50 食品添加剂聚乙烯聚吡咯烷�?Polyvinylpolypyrrolidone)

　　�� 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.

　　更多关于美国 FDA 可直接加入食品中的辅助性食品添加剂的种类法规，请点出�a href="//www.sqrdapp.com/law/dongtai/171830.html">美国FDA 21 CFR �?73部分可直接加入食品中的辅助性食品添加剂种类汇怺�/a>