Experiences in olive oil purity and quality assessment as a tool for pumpkin seed oil evaluation. What can consumers benefit?

Acta Alimentaria

Volumn 38, Issue 2, 2009, Pages 219-227

  Butinar, B ^a   Bucar Miklavcic M ^a,b   Krumpak, A ^c   Raspor, P ^d  

^a UNIVERSITY OF PRIMORSKA   (Slovenia)

^b LABS LLC   (Slovenia)

^c Institute for Food Safety and Consumer's Health Protection   (Slovenia)

^d UNIVERSITY OF LJUBLJANA   (Slovenia)

Author keywords

Analytical assessment; Olive oil; Pumpkin seed oil; Purity; Quality

Indexed keywords

EID: 67449083145     PISSN: 01393006     EISSN: 15882535     Source Type: Journal    
DOI: 10.1556/AAlim.2008.0033     Document Type: Article

References (23)

1. APPLEQUIST, W.L., AVULA, B., SCHANEBERG, B.T., WANG, YAN-HONG & KHAN, I.A. (2006): Comparative fatty acid content of seeds of four Cucurbit. species grown in a common (shared) garden. J. Fd Comp. Anal., 1., 606-611.
2. BREINHÖLDER, P., MOSCA, L. & LINDNER, W. (2002): Concept of sequential analysis of free and conjugated phytosterols in different plant matrices. J. Chromat. B, 77., 67-82.
3. BRODNJAK-VONČINA, D., CENCIČ KODBA, Z. & NOVIČ, M. (2005): Multivariate data analysis in classification of vegetable oils characterized by the content of fatty acids. Chemometrics Intelligent Lab. Syst., 7., 31-43.
4. BUČAR-MIKLAVČIČ, M., DUJC, V. & HLAJ, A. (2003): Elaborat za postopek priznanja označbe geografskeg porekla "Ekstra deviško oljčno olje Slovenske Istre".. (Expert report for the procedure of recognition for the 'PDO' 'Extra virgin olive oil of Slovene Istria'.) DOSI, Koper, Slovenia, pp. 49-59.
5. DOLŠEK, K. (1997): Bučno olj.. (Pumpkin seed oil.) Graduation Thesis, University of Ljubljana, Faculty for chemistry and chemical technology, Ljubljana, Slovenija, pp. 4-18.
6. EC (2002a): Commission Regulation (EC) No 796/2002 of 6 May 2002 amending Regulation (EEC) No 2568/91 on the characteristics of olive oil and olive-pomace oil and on the relevant methods of analysis and the additional notes in the Annex to Council Regulation (EEC) No 2658/87 on the tariff and statistical nomenclature and on the Common Customs Tariff.
7. EC (2002b): Commission Regulation (EC) No 1019/2002 of 13 June 2002 on marketing standards for olive oil.
8. EC (2003): Commission Regulation (EC) No. 1989/2003 of 6 November 2003 amending Regulation (EEC) No. 2568/91 on the characteristics of olive oil and olive-pomace oil and on the relevant methods of analysis.
9. EC (2006a): Council Regulation (EC) No 510/2006 of 20 March 2006 on the protection of geographical indications and designations of origin for agricultural products and foodstuffs.
10. EC (2006b): Publication of an application pursuant to Article 6(2) of Council Regulation (EC) No 510/2006 on the protection of geographical indications and designations of origin for agricultural products and foodstuffs (2006/C 127/08).
11. EC (2007): Commission Regulation (EC) No 148/2007 of 15 February 2007 registering certain names in the Register of protected designation of origin and protected geographical indications.
12. EEC (1991): Commission Regulation (EEC) No. 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil on the relevant methods of analysis.
13. EEC (1992): Council Regulation No 2081/92 of 14 July 1992 on the protection of geographical indications and designations of origin for agricultural products and foodstuffs.
14. ISO (1997): Animal and vegetable fats and oils - Determination of tocopherols and tocotrienols contents - Method using high-performance liquid chromatograph.. International Organization for Standardization No. 9936, Geneva, Switzerland.
15. KARAS, R. (2001): Avstrijci so že zaščitili bučno olje. (Austrians have already registered their pumpkin seed oil.) Vestnik, 5., (49) 10.
16. KOPRIVNJAK, O. (2006): Djevičansko maslinovo ulje od masline do stola. (Virgin olive oil from the olive to the table.) MIH d.o.o., Poreč, Croatia, pp. 135-144.
17. MANDL, A., REICH, G. & LINDNER, W. (1999): Detection of adulteration of pumpkin seed oil by analysis of content and composition of specific ?7-phytosterols. Eur. Fd Res. Technol., 20., 400-406.
18. MURKOVIC, M. & PFANNHAUSER, W. (2000): Stability of pumpkin seed oil. Eur. J. Lipid Sci. Technol., 10., 607-611.
19. MURKOVIC, M., HILLEBRAND, A., WINKLER, J. & PFANNHAUSER, W. (1996): Variability of vitamin E content in pumpkin seeds (Cucurbita pep. L.). Z. Lebensm Unters Forsch., 20., 275-278.
20. NEDERAL NAKIĆ, S., RADE, D., ŠKEVIN, D., ŠTRUCELJ, D., MOKROVČ AK, Ž. & BARTOLIĆ, M. (2006): Chemical characteristics of oils from naked and husk seeds of Cucurbita pep. L. Eur. J. Lipid Sci. Technol., 10., 936-943.
21. SIEGMUND, B. & MURKOVIC, M. (2004): Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds). Fd Chem., 8., 367-374. ŠKERLIČ, I., BUČAR- MIKLAVČIČ, M., BANDELJ MAVSAR, D., REŽEK-DONEV, N. & MARŠIČ, K. (2006): Izdelava predhodne študije ekstra deviškega oljčnega olja z geografskim poreklom. (Preliminary study for extra virgin olive oil with geographical origin.) University of Primorska, Science and Research Centre of Koper, Koper, Slovenia, pp. 4-8.
22. WENLI, Y., YAPING, Z., JINGJING, C. & BO, S. (2004): Comparison of two kinds of pumpkin seed oils obtained by supercritical CO2 extraction. Eur. J. Lipid Sci. Technol., 10., 355-358.
23. WENZL, T., PRETTNER, E., SCHWEIGER, K. & WAGNER, F. (2002): An improved method to discover adulteration of Styrian pumpkin seed oil. J. biochem. biophys. Methods., 5., 93-202.