Poly-TV-vinylpyrrolidone

Preparation of blends of cellulose and poly(TV-vinylpyrrolidone) in DMSO with paraformaldehyde [124]. 

No leakage of the enzymes was detected when glucoamylase, jS-D-fructo-furanosidase, or jS-o-galactosidase were trapped within poly(TV-vinylpyrrolidone) gels, although activity losses of <90% occurred. The gel-entrapped glucoamylase hydrolysed dextrin (mol. wt. 1.04 x 10 ) to the same extent as the free enzyme. 

---