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Molecules 2012, 17(6), 6716-6727; doi:10.3390/molecules17066716
Article

1H-Nuclear Magnetic Resonance Analysis of the Triacylglyceride Composition of Cold-Pressed Oil from Camellia japonica

1
, 2
, 1
, 2,* , 2
, 1
 and 3
1 Areeiro Phytopathological Station, Pontevedra Deputation, Subida a la Robleda s/n., E36153 Pontevedra, Spain 2 Department of Organic Chemistry, Faculty of Science, University of Santiago de Compostela, E27002 Lugo, Spain 3 Department of Plant Production, University of Santiago de Compostela, E27002 Lugo, Spain
* Author to whom correspondence should be addressed.
Received: 1 March 2012 / Revised: 23 May 2012 / Accepted: 28 May 2012 / Published: 4 June 2012
(This article belongs to the Special Issue ECSOC-15)
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Abstract

Camellia japonica (CJ) has oil-rich seeds, but the study of these oils has received little attention and has mainly focused only on their health properties. In the present work the relative composition of the fatty acid (FA) components of the triglycerides in cold-pressed oil from CJ is studied by 1H-NMR. The results obtained were: 75.75%, 6.0%, 0.17% and 18.67%, for oleic, linoleic, linolenic and saturated FA respectively. Levels of C18 unsaturated FA found in CJ oil were similar to those reported for olive oils. We also checked the possibility of using 13C-NMR spectroscopy; however, the results confirmed the drawback of 13C over 1H-NMR for the study of FA components of CJ triglycerides due to its low gyromagnetic ratio and its very low natural abundance.
Keywords: Camellia japonica; nuclear magnetic resonance; 1H-NMR; 13C-NMR; triacylglycerides; oil Camellia japonica; nuclear magnetic resonance; 1H-NMR; 13C-NMR; triacylglycerides; oil
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Salinero, C.; Feás, X.; Mansilla, J.P.; Seijas, J.A.; Vázquez-Tato, M.P.; Vela, P.; Sainz, M.J. 1H-Nuclear Magnetic Resonance Analysis of the Triacylglyceride Composition of Cold-Pressed Oil from Camellia japonica. Molecules 2012, 17, 6716-6727.

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