Ultra high pressure, high temperature food preservation process

A - Human Necessities – 23 – L

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Details

A23L 3/015 (2006.01) A23C 19/097 (2006.01) A23L 3/02 (2006.01) A23L 3/10 (2006.01) A23L 3/16 (2006.01) A23L 3/22 (2006.01)

Patent

CA 2339204

This invention pertains to methods for achieving the commercial sterilization of foods particularly advantageous for foods having a pH greater than or equal to 4.5 involving concomitant treatment of the food to two or more cycles of high heat, high pressure, with a brief pause between cycles. The pressurization schedule relies on the additional instantaneous, uniform heat from adiabatic pressurization and then instantaneous, uniform adiabatic cooling during depressurization for each cycle.

Cette invention se rapporte à des procédés permettant de réaliser la stérilisation commerciale de produits alimentaires, particulièrement avantageux pour des produits alimentaires ayant un pH supérieur ou égal à 4,5, ces procédés utilisant le traitement concomitant du produit alimentaire en au moins deux cycles de forte chaleur et de pression élevée, avec une brève pause entre les cycles. Le programme de pressurisation se fonde sur la chaleur additionnelle instantanée, produite par la pressurisation adiabatique, et ensuite sur le refroidissement adiabatique uniforme instantané, produit pendant la dépressurisation, pour chaque cycle.

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