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Design of a UV-C irradiation process for the inactivation of viruses in protein solutions. | LitMetric

Design of a UV-C irradiation process for the inactivation of viruses in protein solutions.

Biologicals

Protein Fractionation Centre, Scottish National Blood Transfusion Service, Ellen's Glen Road, Edinburgh EH17 7QT, UK.

Published: June 2005

AI Article Synopsis

Article Abstract

The ability of ultraviolet (UV) light to inactivate viruses is well established. However, attempts to apply this to the manufacture of pharmaceutical proteins have been limited by incomplete treatment, low capacity or excessive dilution. Effective processing of large-scale batches of UV-opaque protein solutions has been achieved using a continuous-flow device. The operation of this device has been modelled and a design equation derived to relate the processing conditions and product characteristics to the degree of virus inactivation obtained. Variables included in the model are UV-absorbance at 254 nm (A(254)), hydrodynamic properties of the protein solution, residence time, intensity of UV light and diameter and length of irradiation tube. With this information a specific constant was calculated for each virus which denotes its relative sensitivity to UV and from which the degree of virus inactivation expected can be estimated.

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Source
http://dx.doi.org/10.1016/j.biologicals.2005.02.001DOI Listing

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