Carrier-free immobilization of lipase from candida rugosa with polyethyleneimines by carboxyl-activated cross-linking

1. Velasco-Lozano, S.
2. López-Gallego, F.
3. Vázquez-Duhalt, R.
4. Mateos-Díaz, J.C.
5. Guisán, J.M.
6. Favela-Torres, E.