| 摘要 |
<p>Processes for improving a value-determining property of a biological fermented solution, which comprise treating the biologically fermented solution after the fermentation, per 100 liter, with 1 to 3000 g of a polymer which comprises 50-99.5% by weight of N-vinylimidazole and 0 to 49.5% by weight of another copolymerizable monomer incorporated by polymerization and is produced in the absence of oxygen and polymerization initiators and also in the presence of 0.5 to 10% by weight, based on the monomers, of a crosslinker.</p> |
