NEW COMPOSITION USE AND METHOD

摘要

At least one alkyl paraben is used in an aqueous antimicrobial preservation composition for eliminating or reducing the microbial content of a microbial ly contaminated separation matrix, which is to be used in a housing of a separation device, the separation matrix being microbially contaminated. Als o, in a method of producing a separation matrix with eliminated or reduced microbial content, the method comprises the steps of providing said separati on matrix, microbially contaminated, in a housing or container; adding an aqueo us antimicrobial preservation composition, which comprises at least one alkyl paraben, to said separation matrix in said housing or container; allowing sa id aqueous antimicrobial preservation composition to exert its effect in said housing or container until the number of colony forming units (CFU) per g preservative composition is sufficiently reduced; and rinsing said aqueous antimicrobial preservation composition from said housing or container.