Regeneracja oleju z orzecha włoskiego adsorbentami pozyskanymi z jego łupin
Regeneration of Walnut Oil on Adsorbents Derived from Walnut Shells

Summary/Abstract: The paper presents the treatment by physical and chemical activation of oxidised oil from walnuts on carbon adsorbents obtained from walnut shells. Estimated sorption properties of activated carbons were shown on the methylene and iodine adsorption number. In order to assess the oil regeneration process, the following quality indicators were investigated: the peroxide number, the anisidine value, the total acid number, the iodine value and the Totox value, colour substances and the fatty acid profile. Following the regeneration process, a reduction in primary and secondary oil oxidation products was observed, leaving the fatty acid profile practically unchanged. This indicates that oil has a high affinity and selectivity toward the adsorption of the products of its own decomposition. The thesis is shown to be valid. That is, the period of use following treatment of oxidised oil on adsorbents obtained from walnut shells can be extended.

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