Pvpp is short for polyvinylpolypyrrolidone which is a polymerized and water/beer insoluble version of the soluble compound PVP (polyvinylpyrrolidone), a nylon-type polymer that has an even higher affinity for chemical bonding with polyphenols than the proteins present in beer have.

PVPP is a synthetic, high-molecular-weight clarifying agent made up of cross-linked monomer of polyvinylpyrrolidone. PVPP has long been used in the beverage industry as a polyphenol adsorbent (Siebert and Lynn, 1997, 1998). Although, it has been called as a “protein-like” fining agent, insoluble PVPP interacts with only few reactive groups.

Pure polyvinylpolypyrrolidone (PVPP). Highly effective in removing oxidized and oxidizable polyphenols, browning compounds and off-flavors. Prevents and treats oxidation, prevents pinking and reduces bitterness.

Polyclar, the brand name for PVPP plastic particulate, is a unique fining agent that absorbs phenolic compounds and unwanted tannins as well and deactivates oxidative enzymes within the wine. It is especially useful for removing oxidative odors and preventing browning in whites and reds, especially when used in conjunction with activated charcoal.

2024年12月1日 · PVPP, a well-known adsorbent composed of cross-linked polyvinylpyrrolidone, exhibits strong swelling properties and remarkable selectivity towards phenolic compounds (Kemp et al., 2022, Seriš et al., 2023).

Polyvinylpolypyrrolidone (PVPP). Labelling; The label must indicate that PVPP is for oenological usage, minimum guaranteed efficiency vis-à-vis safety test and storage conditions. Characteristics; Light powder, white and creamy white. Insoluble in water and in organic solvents. Insoluble in strong acid minerals and in alkaly. Test trials; 5.1.

交联聚乙烯基吡咯烷酮 (PVPP)是由乙烯基吡咯烷酮单体在特定条件下聚合而成的一种不溶于水、强酸、强碱及一般有机溶剂的交联聚合物。 作为一种重要的高分子精细化工产品,PVPP具有许多优良而独特的性能,已广泛应用于化妆品、食品、医药等领域。 特性交联聚乙烯基吡咯烷酮（PVPP）可以看作是由线型的PVP分子链通过物理方法或者化学方法相互交联而成的。 采用 …

2016年7月24日 · Polyvinylpolypyrrolidone (polyvinyl polypyrrolidone, PVPP, crospovidone, crospolividone or E1202) is a highly cross-linkedmodification of polyvinylpyrrolidone (PVP). The cross-linked form of PVP...

聚乙烯吡咯烷酮 (Polyvinyl pyrrolidone)，简称PVP，是一种非离子型高分子化合物，是N-乙烯基酰胺类聚合物中最具特色，被研究得最深、最广泛的精细化学品。 已发展成为非离子、阳离子、阴离子3大类，工业级、医药级、食品级3种规格，相对分子质量从数千至一百万以上的均聚物、共聚物和交联聚合物系列产品，并以其优异独特的性能获得广泛应用 [1]。 2017年10月27日，世界卫 …

Poly(vinylpolypyrrolidone) ~110 μm particle size; CAS Number: 9003-39-8; Synonyms: PVPP,Polyvinylpyrrolidone, cross-linked at Sigma-Aldrich