%0 Journal Article %T PRUEBA CUANTITATIVA PARA PROTEASAS USANDO PEL¨ªCULAS FOTOGR¨¢FICAS %A PAREJA %A ANDREA %A MONTOYA %A OLGA IN¨¦S %A GUTI¨¦RREZ %A PABLO A %J Acta Biol¨®gica Colombiana %D 2009 %I Universidad Nacional de Colombia %X two quantitative protease assays have been developed based on the classic photographic film test. a discontinuous assay can be performed by measuring the amount of pigment remaining in the film with any image editor software. a continuous assay can be implemented by the measuring the release of silver halide salts bonded in the film using a recording spectrophometer equipped with a peltier cell. %K protease %K enzyme %K activity assay. %U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0120-548X2009000300017&lng=en&nrm=iso&tlng=en