Determination of low level trans unsaturation in physically refined vegetable oils by capillary GLC - Results of 3 intercomparison studies

European Journal of Lipid Science and Technology

Volumn 104, Issue 12, 2002, Pages 792-799

  Buchgraber, Manuela ^a   Ulberth, Franz ^a,b  

^a UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES   (Austria)

^b JOINT RESEARCH CENTRE   (Italy)

Author keywords

Gas liquid chromatography; Intercomparison study; Physically refined vegetable oils; Precision data; Trans fatty acids

Indexed keywords

FATTY ACID ESTER; LINOLEIC ACID; RAPESEED OIL; SILICON DIOXIDE; SILOXANE; SOYBEAN OIL; VEGETABLE OIL;

ACCURACY; ARTICLE; CAPILLARY GAS CHROMATOGRAPHY; DERIVATIZATION; FATTY ACID ANALYSIS; GAS LIQUID CHROMATOGRAPHY; LABORATORY TEST; REPRODUCIBILITY; SEPARATION TECHNIQUE; STANDARD; TRANS ISOMER; VALIDATION PROCESS;

GLYCINE MAX; SINAPIS ARVENSIS;

EID: 0036949352     PISSN: 14387697     EISSN: None     Source Type: Journal    
DOI: 10.1002/1438-9312(200212)104:12<792::AID-EJLT792>3.0.CO;2-B     Document Type: Article

References (24)

1. A. H. Lichtenstein: Trans fatty acid and cardiovascular disease risk. Curr. Opin. Lipidology 11 (2000) 37-42.
2. S. Shapiro: Do trans fatty acids increase the risk of coronary artery disease? A critique of the epidemiologic evidence. Am. J. Clin. Nutr. 66 (suppl) (1997) 1011S-1017S.
3. K. Hayakawa, Y.-Y. Linko, P. Linko: The role of trans fatty acids in human nutrition. Eur. J. Lipid Sci. Technol. 102 (2000) 419-425.
4. H. Steinhart, A. Pfalzgraf: Trans-Fettsäuren in Lebensmitteln. Fat Sci. Technol. 96 (1994) 42-44.
5. J. L. Sebedio, A. Grandgirard, J. Prevost: Linoleic acid isomers in heat treated sunflower oils. J. Am. Oil Chem. Soc. 65 (1988) 362-367.
6. A. Grandgirard, J. L. Sebedio, J. Fleury: Geometrical isomerization of linolenic acid during heat treatment of vegetable oils. J. Am. Oil Chem. Soc. 61 (1984) 1563-1568.
7. R. L. Wolff: Heat-induced geometrical isomerization of α-linolenic acid: Effect of temperature and heating time on the appearance of individual isomers. J. Am. Oil Chem. Soc. 70 (1993) 425-430.
8. R. L. Wolff: Further studies on artificial geometrical isomers of α-linolenic acid in edible linolenic acid-containing oils. J. Am. Oil Chem. Soc. 70 (1993) 219-224.
9. Official Methods of Analysis of AOAC INTERNATIONAL (1997) 16th Ed., 3rd Rev., AOAC INTERNATIONAL, Gaithersburg, MD, USA, sec. 965.34.
10. Official Methods of Analysis of AOAC INTERNATIONAL (1997) 16th Ed., 3rd Rev., AOAC INTERNATIONAL, Gaithersburg, MD, USA, sec. 994.14.
11. th Ed., American Oil Chemists' Society, Champaign, IL, sec. Ce 1c-89.
12. th Ed., American Oil Chemists' Society, Champaign, IL, sec. Ce 1g-96.
13. th Ed., American Oil Chemists' Society, Champaign, IL, sec. Cd 14d-99.
14. G. S. M. J. E. Duchateau, H. J. van Oosten, M. A. Vasconcelos: Analysis of cis- and trans-fatty acid isomers in hydrogenated and refined vegetable oils by capillary gas-liquid chromatography. J. Am. Oil Chem. Soc. 73 (1996) 275-282.
15. P. C. van Bruggen, G. S. M. J. E. Duchateau, M. M. W. Mooren, H. J. van Oosten: Precision of low trans fatty acid level determination in refined oils. Results of a collaborative capillary gas-liquid chromatography study. J. Am. Oil Chem. Soc. 75 (1998) 483-488.
16. th Revised and Enlarged Edition, International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, UK.
17. A. Grandgirard, F. Julliard, J. Prevost, J. L. Sebedio: Preparation of geometrical isomers of linolenic acid. J. Am. Oil Chem. Soc. 64 (1987) 1434-1439.
18. C. D. Bannon, J. D. Craske, L. M. Norman: Effect of overload of capillary gas-liquid chromatographic columns on the equivalent chain lengths of C18 unsaturated fatty acid methyl esters. J. Chromatogr. 447 (1988) 43-52.
19. International Standard ISO 5725 - Accuracy (trueness and precision) of measurement methods and results (1994), International Organisation for Standardization, Genève, Switzerland.
20. M. Buchgraber, F. Ulberth, E. Anklam: Determination of trace amounts of fatty acids in edible oils by capillary gas-liquid chromatography. J. Am. Oil Chem. Soc. 77 (2000) 653-657.
21. A. Aro, J. van Amelsvoort, W. Becker, M.-A. van Erp-Baart, A. Kafatos, T. Leth, G. van Poppel: trans Fatty acids in dietary fats and oils from 14 European countries: The TRANSFAIR study. J. Food Comp. Anal. 11 (1998) 137-149.
22. M. Henninger, F. Ulberth: Trans fatty acids in margarines and shortenings marketed in Austria. Z. Lebensm. Unters. Forsch. 203 (1996) 210-215.
23. S. M. Innis, T. J. Green, T. K. Halsey: Variability in the trans fatty acid content of foods within a food category: Implications for estimation of dietary trans fatty acid intakes. J. Am. Coll. Nutr. 18 (1999)255-260.
24. R. L. Wolff: Analysis of alpha-linolenic acid geometrical isomers in deodorized oils by capillary gas-liquid chromatography on cyanoalkyl polysiloxane stationary phases: A note of caution. J. Am. Oil Chem. Soc 71 (1994) 907-909.