Article ID Journal Published Year Pages File Type
2089964 Journal of Microbiological Methods 2014 6 Pages PDF
Abstract

•We studied new approaches for preservative efficacy test (PET).•Freeze-dried microorganisms provide less variability of PET results.•Results from electrical methods were equivalent to those by pour plate technique.

Freeze-dried bacteria and fungi were used as inoculum in 28 days' PET. An electrical method was used in replacement of the conventional plate count method. The use of freeze-dried microorganisms in association with the electrical method can minimize the workload and the variability involved in PET for cosmetic powders.

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Life Sciences Biochemistry, Genetics and Molecular Biology Biotechnology
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