Nauka Przyroda Technologie

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Justyna Gromadzka, Waldemar Wardencki
Comparison of oxidative stability of different edible oils
Summary.

The aim of the presented study was to compare oxidative stability of different edible oils originating from Poland, Finland and Spain. The UV irradiation was used as accelerator of the oil oxidation process. After UV irradiation, the formed volatile compounds were extracted by use of the headspace solid-phase microextraction HS-SPME (DVB/CAR/PDMS fibre) and analysed by gas chromatography coupled with flame ionization detector (GC/FID). The induction periods were determined on the basis of hexanal to 2-trans-nonenal ratio in analysed samples. At the end, the obtained results were compared with values of induction period obtained by Rancimat method and peroxide value. During the method development, the optimal parameters for extraction of volatiles were determined and the elements of the method validation was performed. The described method permits to detect typical oil oxidation products with satisfactory precision and repeatability.

Key words: edible oils, oxidative stability, UV irradiation, volatile compounds, gas chromato¬graphy, solid phase microextraction (SPME)
PDFFull text available in English in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom3/zeszyt4/art_138.pdf

For citation:

MLA Gromadzka, Justyna, and Waldemar Wardencki. "Comparison of oxidative stability of different edible oils." Nauka Przyr. Technol. 3.4 (2009): #138.
APA Justyna Gromadzka, Waldemar Wardencki (2009). Comparison of oxidative stability of different edible oils. Nauka Przyr. Technol. 3 (4), #138
ISO 690 GROMADZKA, Justyna, WARDENCKI, Waldemar. Comparison of oxidative stability of different edible oils. Nauka Przyr. Technol., 2009, 3.4: #138.
Corresponding address:
Justyna Gromadzka
Katedra Chemii Analitycznej
Politechnika Gdańska
ul. Narutowicza 11/12
80-233 Gdańsk
Poland

e-mail: justyna@gromadzcy.pl
Accepted for print: 4.11.2009