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Chemistry of Natural Compounds

, Volume 40, Issue 5, pp 420–422 | Cite as

Investigation of kernel oils of Quercus robur and Quercus cerris

  • S. Petrovic
  • S. Sobajic
  • S. Rakic
  • A. Tomic
  • J. Kukic
Article

Abstract

The kernel oils of Quercus robur and Quercus cerris were obtained by Soxhlet extraction using petroleum ether. Oil yields were found to be 5.2–5.6% and 4.3–4.8% for Q. robur and Q. cerris kernel, respectively (expressed in g per 100 g of dried plant material). The physical and chemical constants, unsaponifiable matter and total fatty acids were determined. The total fatty acid composition of oils was determined by GC in the methyl ester form. Considering the composition and content of fatty acids, the examined kernel oils were very similar. Seven fatty acid components were identified in both oils: palmitic, stearic, arachidic, palmitoleic, oleic, linoleic, and α-linolenic. In Q. robur and Q. cerris kernel oils the principal acids were oleic (44.3% and 43.0%, respectively) and linoleic (37.2% and 32.6%, respectively), followed by a significant amount of palmitic acid.

Key words

Quercus robur L. Quercus cerris L. kernel oils physical and chemical constants fatty acid composition GC 

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REFERENCES

  1. 1.
    Hoppe, H. A. 1958Drogenkunde, 7Auflage, Gram, De Gruyter & COHamburg754756Google Scholar
  2. 2.
    Gorunovic, M. S., Lukic, P. B. 2001FarmakognozijaFaculty of Pharmacy, University of BelgradeBelgrade97Google Scholar
  3. 3.
    Jankovic, M. 1975Quercus LJosifovic, M. eds. The Flora of FR SerbiaSANUBelgrade8387Google Scholar
  4. 4.
    Hopkins, C. Y., Chisholm, M. J. 1953Can. J. Chem.311173Google Scholar
  5. 5.
    Cantos, E., Espin, J. C., Lopez-Bote, C., Hoz, L., Ordonez, J. A., Tomas-Barberan, F. A. 2003J. Agric. Food Chem.516248Google Scholar
  6. 6.
    Renaud, S. C., Lanzmann-Petithory, D. 2001Hamazaki, T.Okuyama, H. eds. World Rev. Nutr. DietKargerBasel7985Google Scholar
  7. 7.
    Guallar, E., Aro, A., Jimenez, F. J.,  et al. 1999Arterioscler. Thromb. Vasc. Biol.191111Google Scholar
  8. 8.
    Hu, F. B., Stampfer, M. J., Morison, J. E., Rimm, E. B., Wolk, A., Colditz, G. A., Hennekens, C. H., Willett, W. C. 1999Am. J. Clin. Nutr.69890Google Scholar
  9. 9.
    Yugoslav Pharmacopoeia, Pharmacopoea Jugoslavica editio quarta, Ph. Jug. IV, National Institute for Health Protection, Belgrade, 1984, pp. 33–59.Google Scholar
  10. 10.
    Yugoslav Official Register (Sluzbeni list SFRJ), 25, 840 (1973).Google Scholar
  11. 11.
    Metcalfe, L. D., Schmitz, A. A. 1961Annal. Chem.33363Google Scholar
  12. 12.
    International Standard ISO 5508–1978 (E).Google Scholar
  13. 13.
    International Standard ISO 5508–1979 (E).Google Scholar
  14. 14.
    European Pharmacopoeia, Third Edition. Council of Europe, Strasbourg, 1997, pp. 63–64.Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2004

Authors and Affiliations

  • S. Petrovic
    • 1
  • S. Sobajic
    • 2
  • S. Rakic
    • 3
  • A. Tomic
    • 1
  • J. Kukic
    • 1
  1. 1.Institute of Pharmacognosy, Faculty of PharmacyUniversity of BelgradeBelgradeSerbia and Montenegro
  2. 2.Institute of Bromatology, Faculty of PharmacyUniversity of BelgradeBelgradeSerbia and Montenegro
  3. 3.Department of Food Technology and Biochemistry, Faculty of AgricultureUniversity of BelgradeBelgrade-ZemunSerbia and Montenegro

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