Abstract:
In this work nitrogen treatment experiment was set up to determine the intensity of
oxidation products accumulation in cold pressed walnut oil. The influence of the nitrogen treatment
was assessed by measuring the primary and secondary oxidation products in oil samples immediately
after treatment up to the 30 weeks of storage. Primary oxidation products of walnut oil samples were
evaluated by measuring peroxide value and conjugated dienes content. Secondary oxidation products
of walnut oil samples were evaluated by measuring p-anisidine value and 2-thiobarbituric acid value.
These data should help us to describe oxidation mechanism of walnut oil and to recommend optimal
conditions for walnut oil stabilization. However it is necessary to note that these data are not enough
to make a final conclusion about the behavior of walnut oil after nitrogen treatment during storage.
Currently we obtained preliminary data about accumulation of primary and secondary oxidation
products in walnut oil.