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

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 extrac...

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Bibliographic Details
Published inChemistry of natural compounds Vol. 44; no. 2; pp. 151 - 154
Main Authors Rabrenovic, B., Picuric-Jovanovic, K., Sobajic, S.
Format Journal Article
LanguageEnglish
Published Boston Springer US 2008
Springer Nature B.V
Subjects
Carbohydrates
Chemical composition
Cold pressing
Fatty acids
Flame ionization detectors
Gas chromatography
Iodine
Linolenic acid
Medicine
Moisture effects
Oleic acid
Organic Chemistry
Pharmacy
Plant Sciences
Solvent extraction
solvent extraction
cold pressing extraction
walnut oil
physical and chemical constants
fatty acid composition
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Summary: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.
ISSN:0009-3130
1573-8388
DOI:10.1007/s10600-008-9000-8