Oil extraction from olive foot cake with acidic hexane

S. Kmieciak; S. Mecziane; H. Kadi; R. Moussaoui

doi:10.3989/gya.1991.v42.i1.1277

Oil extraction from olive foot cake with acidic hexane

Authors

S. Kmieciak Laboratoire de Revalorisation des sous-produits oléicoles. Unité de Recherche Biologie. Université de TIZI-OUZOU
S. Mecziane Laboratoire de Revalorisation des sous-produits oléicoles. Unité de Recherche Biologie. Université de TIZI-OUZOU
H. Kadi Laboratoire de Revalorisation des sous-produits oléicoles. Unité de Recherche Biologie. Université de TIZI-OUZOU
R. Moussaoui Laboratoire de Revalorisation des sous-produits oléicoles. Unité de Recherche Biologie. Université de TIZI-OUZOU

DOI:

https://doi.org/10.3989/gya.1991.v42.i1.1277

Keywords:

Acidic hexane, Olive foot cake (extraction), Solvent extraction

Abstract

The use of acidic hexane as a solvent increases the extracted oil yield from olive foot cake. Two extraction procedures are studied: open air extraction at room temperature and Soxhlet exhaustive extraction. The additional yield is about 5% for a 2.5% acetic acid content in case of open air extraction and turns out to be 9% for 7.5% acetic acid content in the Soxhlet procedure. An analysis of the extracted oil shows a light increase of the acidity of oil. The improved yield may be attributed to the action of acetic acid on the decomposition of intercellular structures and binding of some polar lipids. The phospholipids content of oil extracted with 7.5% acidic hexane is found to be 25 times more than with pure hexane.

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Published

1991-02-28

How to Cite

Kmieciak S, Mecziane S, Kadi H, Moussaoui R. Oil extraction from olive foot cake with acidic hexane. Grasas aceites [Internet]. 1991Feb.28 [cited 2025Feb.23];42(1):46-50. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1277

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Issue

Vol. 42 No. 1 (1991)

Section

Research

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