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Shock compression and recovery of microorganism-loaded broths and an emulsion

By P. J. Hazell, K. Groves, C. Stennett and C. Beveridge


The microorganisms Escherichia coli, Enterococcus faecalis and Zygosaccharomyces bailii and an oil-based emulsion, have been subjected to shock compression using the flyer-plate technique to initial pressures of 0.8 GPa (in the suspension). In each experiment, a stainless steel capsule was used to contain the broths and allow for recovery without contamination. Where cavitation was mostly suppressed by virtue of simultaneous shock and dynamic compression, no kill was observed. By introducing an air gap behind the suspension, limited kill was measured in the yeast. Results also suggest that stable emulsification occurs in coarse oil- based emulsions that are subjected to shock

Topics: Shock compression, microorganisms, yeast, capsule design
Publisher: AIP American Institute of Physics
Year: 2009
DOI identifier: 10.1063/1.3295070
OAI identifier:
Provided by: Cranfield CERES

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