Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 311599
Title Method for treating products by high voltage pulses
Author(s) Winter, E.J.G.D.; Mastwijk, H.C.; Bartels, P.V.
Source Octrooinummer: WO0056179, gepubliceerd: 2000-09-28.
Department(s) Agrotechnological Research Institute
Publication type Patent
Publication year 2000
Abstract The invention relates to a method for treating products, which may contain cellular material of eukaryotic and/or prokaryotic origin and in particular micro-organisms, by bringing the product in device comprising two electrodes connected to an electronic circuit such that in said device and in said product a pulsating electrical field is created, characterized by the rise time of each imposed voltage pulse which is less than the electronic relaxation time of the product. Preferably the rising edge of each cycle starts within the relaxation time of the product and even more preferably each electrical field pulse has a duration shorter than the relaxation time of the product. Dependent on the type of product and the types of micro-organisms contained in the product, the maximum fieldstrength of each pulse, the repetition frequency and the number of cycles in the treatment are selected such that the target micro-organisms and/or spores are functionally inactivated leading to a shelf stable, microbiologically safe product.
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