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| Content Provider | Springer Nature Link |
|---|---|
| Author | Woodbury, Simon E. Evershed, Richard P. Barry Rossell, J. |
| Copyright Year | 1998 |
| Abstract | The fatty acid compositions and δ$^{13}$C values of the major fatty acids of more than 150 vegetable oils were determined to provide a database of isotopic information for use in the authentication of commercial maize oil. After extraction of oils from seeds, nuts or kernels, and methylation, fatty acid compositions were determined by capillary gas chromatography. All compositions were within the ranges specified by the Codex Alimentarius. Gas chromatography combustion-isotope ratio mass spectrometry was employed to determine the δ$^{13}$C values of the major fatty acids of the oils. A large number of pure maize oils and potential adulterant oils from various parts of the world were studied to assess the sources of variability in δ$^{13}$C values. Such information is vital to establishing the compound specific isotope technique as a reliable means of assessing vegetable oil purity. Variability in δ$^{13}$C values was related to the geographical origin of the oil, year of harvest, and the particular variety of oil. This suggests that the ultimate δ$^{13}$C values of fatty acids are determined by a combination of environmental and genetic factors. |
| Starting Page | 371 |
| Ending Page | 379 |
| Page Count | 9 |
| File Format | |
| ISSN | 0003021X |
| Journal | Journal of the American Oil Chemists' Society |
| Volume Number | 75 |
| Issue Number | 3 |
| e-ISSN | 15589331 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 1998-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Authenticity δ$^{13}$C values gas chromatography (GC) gas chromatography combustion-isotope ratio mass spectrometry (GCC-IRMS) fatty acid methyl esters fatty acids stable carbon isotopes vegetable oils Industrial Chemistry/Chemical Engineering Analytical Chemistry Chemistry/Food Science Biotechnology Biomaterials Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Chemical Engineering |
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