PVP nws tus kheej tsis yog carcinogenic thiab muaj zaub mov zoo. Nws tuaj yeem tsim cov complexes nrog cov tshuaj polyphenolic tshwj xeeb (xws li tannins) thiab feem ntau yog siv los ua kom pom tseeb thiab ruaj khov hauv kev ua zaub mov, xws li npias, kua txiv hmab txiv ntoo, thiab cawv. PVP tuaj yeem tsim cov complexes nrog cov tshuaj polyphenolic tshwj xeeb (xws li tannins), uas ua lub luag haujlwm kom paub meej thiab tiv thaiv coagulant hauv cov kua txiv hmab txiv ntoo. Ntxiv {{0}}.01% ~ 0.02% soluble PVP rau lub tank fermentation, raws li qhia los ntawm Buschke H li al., tuaj yeem txo nws qhov chaw khov. Kev siv PVP hauv cov txheej txheem ntawm cov cawv txiv hmab thiab cov kua txiv hmab txiv ntoo tuaj yeem muaj cov txiaj ntsig zoo ib yam. Daim ntawv thov kev sib txuas ntawm PVP hauv npias thiab dej tshuaj yej yog qhov tshwj xeeb tshaj plaws. Cov tshuaj polyphenolic hauv npias tuaj yeem khi nrog cov proteins hauv npias los tsim cov tannin macromolecular complexes, uas cuam tshuam rau qhov tsw ntawm npias thiab ua rau nws lub neej ntev. Crosslinked polyvinylpyrrolidone (PVPP) tuaj yeem chelate nrog tannic acid thiab anthocyanins hauv npias, yog li qhia meej rau npias, txhim kho nws qhov ruaj khov, thiab txuas nws lub neej txee. Hauv cov dej haus tshuaj yej, kev siv PVPP tuaj yeem tsim nyog txo cov ntsiab lus ntawm cov tshuaj yej polyphenols, thiab PVPP tsis nyob hauv cov dej haus tshuaj yej, ua rau nws rov siv tau thiab txo cov nqi.