Jiang, Xiuming; Yang, Denghui; Xiang, Guoqiang; Hu, Leqian published the artcile< Determination of cis/trans fatty acid contents in edible oils by 1H NMR spectroscopy in association with multivariate calibration>, Product Details of C19H34O2, the main research area is cis trans fatty acid edible oil NMR spectroscopy calibration.
In this work, cis and trans fatty acid (FA) contents in edible oils was determined using 1H NMR (1H NMR) spectroscopy. The comparison of 1H NMR spectra of edible oil and cis-trans isomerized oil showed that they were different in three regions: (1) 2.880 – 2.650 ppm caused by bis-allylic protons; (2) 2.140 – 1.900 ppm due to allylic protons; and (3) 1.030 – 0.930 ppm due to Me protons of linolenic acyl groups. The 1H NMR signals in these regions were combined with partial least squares method to predict contents of cis/trans fatty acids in edible oils. The results showed that the predicted values were consistent with the gas chromatog.-measured values and had a good linear relationship with a correlation coefficient (R2) of above 0.98. This work demonstrates that 1H NMR spectroscopy was successfully used to determine the composition of both cis and trans fatty acids in edible oils.
Journal of Food Composition and Analysis published new progress about Analysis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.
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