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

Molecules

Carmen Salinero¹  Xesús Feás¹  J. Pedro Mansilla¹  Julio A. Seijas¹  M. Pilar Vázquez-Tato¹  Pilar Vela¹ 

[1] ¹Areeiro Phytopathological Station, Pontevedra Deputation, Subida a la Robleda s/n., E36153 Pontevedra, Spain ²Department of Organic Chemistry, Faculty of Science, University of Santiago de Compostela, E27002 Lugo, Spain ³Department of Plant Production, University of Santiago de Compostela, E27002 Lugo, Spain

关键词: Camellia japonica;    nuclear magnetic resonance;    ¹H-NMR;    ¹³C-NMR;    triacylglycerides;    oil;   

DOI  :  10.3390/molecules17066716

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.