Chemistry of Natural Compounds

, Volume 44, Issue 2, pp 151–154

Physicochemical properties and fatty acid composition of Juglans regia cultivars grown in Serbia

  • B. Rabrenovic
  • K. Picuric-Jovanovic
  • S. Sobajic
Article

DOI: 10.1007/s10600-008-9000-8

Cite this article as:
Rabrenovic, B., Picuric-Jovanovic, K. & Sobajic, S. Chem Nat Compd (2008) 44: 151. doi:10.1007/s10600-008-9000-8

Abstract

Tree cultivars (Jupiter, Sejnov, and Elit) of walnut (Juglans regia L.) were collected during the 2004 harvest from Cacak, Central Serbia. The chemical composition, including moisture, total oil content, crude protein, ash, and carbohydrates, was determined. Afterwards, two techniques of oil extraction were implemented: cold pressing extraction and organic solvent extraction. Iodine value, saponification value, acid value, and peroxide value of obtained walnut oils were analyzed. The fatty acid composition of the walnut oils was determined using gas chromatography with flame ionization detector. The oleic acid content of the oils ranged from 15.9–23.7% of the total acids, while linoleic acid content ranged from 57.2–65.1% and the linolenic acid from 9.1–13.6%. The process of oil extraction had no significant effect on content and composition of fatty acids.

Key words

walnut oilcold pressing extractionsolvent extractionphysical and chemical constantsfatty acid composition

Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • B. Rabrenovic
    • 1
  • K. Picuric-Jovanovic
    • 1
  • S. Sobajic
    • 2
  1. 1.Department of Food Technology and BiochemistryFaculty of AgricultureBelgradeSerbia and Montenegro
  2. 2.Department of BromatologyFaculty of PharmacyBelgradeSerbia and Montenegro