caa a22 4500 465796842 CHVBK 20180323112040.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF02540753 doi (NATIONALLICENCE)springer-10.1007/BF02540753 Wollenberg Kurt SVO Enterprises, 29400 Lakeland Blvd., 44092, Wickliffe, OH aut Quantitative high resolution13C nuclear magnetic resonance of the olefinic and carbonyl carbons of edible vegetable oils [Elektronische Daten] [Kurt Wollenberg] The acyl distribution and acyl positional distribution (1,3-acyl and 2-acyl) of triacylglycerols derived from edible vegetable oils has been examined by13C nuclear magnetic resonance (NMR) spectroscopy. The acyl profile of three natural oils (corn, peanut, canola) and one specialty oil (high oleic sunflower oil, Trisun® 80) has been defined from the high resolution (medium field 75.4 MHz) spectrum of the carbonyl and olefinic regions. The quantitative integrity of the NMR derived acyl profile is substantiated by gas chromatographic (GC) analysis. The positional distribution data of the three natural oils indicates that polyunsaturates are replaced in the 1,3-glycerol position exclusively by saturates, while the oley distribution remains, for the most part, randomly distributed. The same is not true for Trisun® 80, which shows a more random distribution of the linoleyl groups as well. AOCS Press, 1990 Quantitative13C NMR high resolution nationallicence positional distribution nationallicence acyl distribution nationallicence triglyceride nationallicence Journal of the American Oil Chemists' Society Springer-Verlag 67/8(1990-08-01), 487-494 0003-021X 67:8<487 1990 67 11746 https://doi.org/10.1007/BF02540753 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02540753 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wollenberg Kurt SVO Enterprises, 29400 Lakeland Blvd., 44092, Wickliffe, OH aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists' Society Springer-Verlag 67/8(1990-08-01), 487-494 0003-021X 67:8<487 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer