Determination of physico-chemical characteristics of walnut (Juglans regia L.) oil from cultivar Sampion

Abstract

The aim of this work was separation and determination of oil from the cultivar Sampion. Two techniques of oil extraction were employed: cold pressing and organic solvent extraction. Composition of walnut kernels and basic physico-chemical parameters of walnut oil were determined, respectively. The oil content was 69.07 %. The fatty acid composition was determined by gas chromatography and the main components were as follows: linoleic acid 58.0%, oleic acid 20.7% and linolenic acid 9.8% for sample obtained by cold pressing and 60.9%, 19.0%, 13.6%, respectively, for sample obtained by solvent extraction.