Process for pasteurizing cheese products, and cheese...

A - Human Necessities – 23 – C

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Details

A23C 19/097 (2006.01) A23C 3/00 (2006.01) A23L 3/015 (2006.01)

Patent

CA 2452072

The present invention relates to a process for pasteurizing dairy products which uses the high hydrostatic pressure method. More particularly, the present invention relates to a process for pasteurizing dairy products, comprising the following stages of operation: a) placing the dairy product, as such or packaged in a suitable packaging, in the compression chamber of a machine for high hydrostatic pressure treatment, the chamber being filled with incompressible fluid, and then sealing the compression chamber, b) raising the pressure within the said compression chamber for a period of approximately 1- 10 minutes, until a pressure in the range from 4000 bars to 6000 bars is reached, c) maintaining the pressure within the said compression chamber for a period of approximately 2-10 minutes at a temperature in the range from 0oC to 25oC, d) decompressing to atmospheric pressure, opening the compression chamber and removing the said dairy product. The dairy product made in this way has improved characteristics by comparison with the identical untreated product; in particular, it is more digestible and has better keeping quality.

L'invention concerne un procédé destiné à pasteuriser des produits laitiers utilisant la méthode de pression hydrostatique élevée. Cette invention concerne, plus particulièrement, un procédé destiné à pasteuriser des produits laitiers, consistant: a) à placer le produit laitier, tel quel ou emballé dans un emballage approprié, dans la chambre de compression d'une machine destinée au traitement sous pression hydrostatique élevée, la chambre étant remplie d'un fluide incompressible, puis à sceller la chambre de compression, b) à augmenter la pression à l'intérieur de la chambre de compression pour une période approximative comprise entre 1 et 10 minutes, jusqu'à ce qu'une pression de 4000 à 6000 bars soit atteinte, c) à maintenir la pression à l'intérieur de cette chambre de compression pour une période approximative comprise entre 2 et 10 minutes à une température entre 0 et 25 ·C, d) à décompresser la chambre jusqu'à la pression atmosphérique, à l'ouvrir et à retirer le produit laitier. Le produit laitier fabriqué au moyen de ce procédé présente des caractéristiques améliorées si on le compare à un produit non traité identique. Il est plus digeste et présente une meilleure qualité de conservation.

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