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Research shows positive results with high pressure technology for certain dairy products
Date:12/22/2010

This release is available in Spanish.

The AZTI-Tecnalia technological centre, in a project undertaken by the Tecnolat and Llet de Catalunya dairy product companies within the FUTURAL project, has verified that, as an alternative to the traditional heat treatment for decontamination of a number of dairy products, high pressure technology is highly recommendable. In fact, according to a press release from Tecnolat, the results, especially with ready-to-eat fruit products and in the inactivation of moulds and yeasts in other dairy products, "were highly positive and promising".

The research and trials carried out by AZTI-Tecnalia showed that, for example, sweetened ready-to-eat fruit products, once subjected to various high pressure treatments at different intensities, showed a total inactivation of the bacteria analysed. In this case the technology also showed itself to be a good technique for conservation, given that the progress of the treated samples was optimum, microbian growth not being observed throughout their useful life.

The trials also showed the effectiveness of this technology in the inactivation of specific moulds and yeasts in dairy foods. Once processed with high pressure, it was observed that the treated samples not only conserved their properties and characteristics of quality throughout their useful life (estimated to be three months) but also, sensorially - the products treated with high pressure tasted better than the traditional (heat treated) samples.

The project has acted to optimise the most suitable high pressure treatment for obtaining the usual ingredients in the dairy industry, as an alternative to traditional heat treatment, thus obtaining products with longer useful life and with practically intact organoleptic characteristics.

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Contact: Oihane Lakar
o.lakar@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert  

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