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.

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.

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.

BASF’s unique polymerization process produces the purist polyvinylpolypyrrolidone, which is completely insoluble in must and wine. Divergan F is selective in binding phenolic species such as catechins and leucoanthocyanidins with minimal effect on flavor and aroma.

2024年7月9日 · Polyvinylpolypyrrolidone (PVPP) shares structural similarity with polyproline and is often used as an adsorbent. According to research [98], 48% of total polyphenols were removed from beer treated with 100 g/hL PVPP.

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...

Insoluble polyvinylpyrrolidone (PVPP) can be produced by the polymerisation of N‐vinyl‐2‐pyrrolidone in the presence of either caustic catalyst or N, N’‐divinyl‐imidazolidone.

2024年4月1日 · Polyvinylpyrrolidone, also known as povidone or PVP, is used in the pharmaceutical industry as a synthetic polymer vehicle for dispersing and suspending drugs.

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.

Learn all about the usage of PVPP in winemaking for the purpose of wine clarifying from professional winemakers at Presque Isle Wine Cellars. View more information and how-to's on wine making on our winemaking 101 page.