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Validation and Substantiation of 25 kGy as Sterilization Dose for Lyophilized Human Amnion Membrane

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Abstract

The validation and substantiation of sterilization dose for lyophilized human amnion membrane by gamma irradiation delivered by Co60 source were investigated. The validation experiments were conducted according to ISO 13409 method B. A total of 120 human amnion membranes were collected. Of these, 10 membranes were used for estimation of bioburden and 20 membranes were used for the individual sterility test at verification dose. The average bioburden per product unit with sample item portion (SIP = 1) for lyophilized human amnion membrane was 572 cfu. The verification dose experiments were done at dose of 8.1 kGy and the results of sterility tests showed that human amnion membrane got one positive. Consequently, the sterilization dose of 25 kGy was confirmed and substantiated.

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Abbreviations

PMMA:

PolyMethy MethAcrylate

ISO:

International Standard Organisation

SAL:

Sterility Assurance Level

SIP:

Sample item portion

CFU:

Colony Forming Units

API:

Analytical Profile Index

I:

Intercept

S:

Slope

CV:

Coefficient of Variation

SD:

Standard Deviation

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Acknowledgements

We would like to thank staff of maternity department of the University Hospital Center of Algiers.

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Correspondence to A. Djefal.

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Djefal, A., Tahtat, D., Nacer Khodja, A. et al. Validation and Substantiation of 25 kGy as Sterilization Dose for Lyophilized Human Amnion Membrane. Cell Tissue Banking 8, 9–12 (2007). https://doi.org/10.1007/s10561-006-9016-x

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  • DOI: https://doi.org/10.1007/s10561-006-9016-x

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