Sera radiosterilization: studies and applications

The application of ionizing radiation for sterilization of animal serum increased rapidly over the last few years, due to the fact that most radiation-resistant living organisms (fungi, bacteria, viruses, etc.) can be readily inactivated without damage to the serum. The quality of sera sterilized by...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) Vol. 45; no. 2; pp. 275 - 281
Main Authors: Lombardo, Jorge H., Fernández Degiorgi, Cristina, Quattrini, Daniel, Michelin, Severino, Smolko, Eduardo E.
Format: Journal Article
Language:English
Published: Elsevier Ltd 1995
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Summary:The application of ionizing radiation for sterilization of animal serum increased rapidly over the last few years, due to the fact that most radiation-resistant living organisms (fungi, bacteria, viruses, etc.) can be readily inactivated without damage to the serum. The quality of sera sterilized by ionizing radiation has been investigated. Radiosterilization was carried out in the frozen state at doses between 25 and 50 kGy. The source of gamma radiation was 60Co. To demonstrate that serum proteins did not suffer alterations during the process of irradiation, SDS-PAGE, electrofocusing and non equilibrium pH gradient electrophoresis of the sera were carried out before and after irradiation. The biological efficiency of the irradiated sera was demonstrated by growth curves of several cell lines in cell cultures supplemented with it. The results demonstrated that radiosterilization is a simple and effective method for sera.
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ISSN:0969-806X
1879-0895
DOI:10.1016/0969-806X(94)E0058-Q