APPLICATION OF NMR SPECTROSCOPY TO ASSESS OXIDATIVE STABILITY OF CANOLA AND SOYBEAN OILS
- 1 March 1993
- journal article
- Published by Wiley in Journal of Food Lipids
- Vol. 1 (1) , 15-24
- https://doi.org/10.1111/j.1745-4522.1993.tb00231.x
Abstract
: Application of 1H NMR spectroscopy to monitor oxidation of canola and soybean oils was investigated over a 30‐day period at 65C. Relative changes of aliphatic to olefinic (Rao) and aliphatic to diallylmethylene (Rad) proton ratios during oxidation of these oils were calculated. A steady increase in Rao and Rad values was observed over the entire length of the storage period. A highly significant correlation (r = 0.933 – 0.985) existed between the TOTOX value and changes in the Rao and Rad during oxidation of both oils. Therefore, NMR offers a novel method to assess oxidative stability of vegetable oils such as canola and soybean.Keywords
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