High pressure processing has become a viable process in the food industry and is employed in the commercial processing of fish and shellfish. This technology offers an attractive alternative to heat pasteurization as a means to produce preservative free, microbiologically safe and stable foods. The present book focuses on the effect of high pressure processing on physicochemical & microbiological quality, and shelf life of black tiger shrimp. A predictive model describing enzyme inactivation rate as function of pressure and temperature is also presented.