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

被引:32
作者
Salinero, Carmen [2 ]
Feas, Xesus [1 ]
Pedro Mansilla, J. [2 ]
Seijas, Julio A. [1 ]
Pilar Vazquez-Tato, M. [1 ]
Vela, Pilar [2 ]
Sainz, Maria J. [3 ]
机构
[1] Univ Santiago de Compostela, Fac Sci, Dept Organ Chem, E-27002 Lugo, Spain
[2] Pontevedra Deputat, Areeiro Phytopathol Stn, E-36153 Pontevedra, Spain
[3] Univ Santiago de Compostela, Dept Plant Prod, E-27002 Lugo, Spain
关键词
Camellia japonica; nuclear magnetic resonance; H-1-NMR; C-13-NMR; triacylglycerides; oil; THEACEOUS PLANTS; NOROLEANANE-TYPE; EDIBLE OILS; ACYL-GROUPS; PROTON NMR; OLIVE OILS; LEAVES; EXTRACT; OKICAMELLIASIDE; TRITERPENOIDS;
D O I
10.3390/molecules17066716
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
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 H-1-NMR. The results obtained were: 75.75%, 6.0%, 0.17% and 18.67%, for oleic, linoleic, linolenic and saturated FA respectively. Levels of C-18 unsaturated FA found in CJ oil were similar to those reported for olive oils. We also checked the possibility of using C-13-NMR spectroscopy; however, the results confirmed the drawback of C-13 over H-1-NMR for the study of FA components of CJ triglycerides due to its low gyromagnetic ratio and its very low natural abundance.
引用
收藏
页码:6716 / 6727
页数:12
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