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Licensed Unlicensed Requires Authentication Published by De Gruyter October 18, 2007

Dynamic Effect in High Pressure Microbe Inactivation

Z.C. Feng

This paper proposes the liquid inertia coupled to the dynamics of micro bubbles as one of the mechanisms for microbe inactivation by high pressures. Liquid inertia can cause a stable bubble to grow unlimited through a pressurization followed by a sudden pressure release. In cases when the vapor pressure is too low to allow unlimited bubble growth, the liquid inertia leads to the hammering effect associated with nonlinear bubble oscillations, a purely mechanical effect that may be responsible for microbe inactivation.

Published Online: 2007-10-18

©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston

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