Study and application of quantitative analysis of fatty acid of tung oil
The quantitative analysis methods of fatty acids, i.e. C16:0, C18, C18:1-9c, C18:2-9c12c, C18:3-9c12c15c, C18:3-9z11e13e in Chinese tung oils were developed by gas chromatography using methyl pentadecanoate as the internal standard. Then, two Chinese tung oils from Jingyang and Jinsi cultivars were analyzed by the methods. The results show that the correlation coefficients (R2) of all the linear regression equations of fatty acid methyl esters (FAMEs) of above fatty acid standards were higher than 0.979;the recoveries were from 98.9%to 104.5%, the RSDs were from 4.6%to 7.3%;the fatty acid contents of Jingyang and Jinsi tung oils were 0.021, 0.022, 0.054, 0.070, 0.002, 0.585 g/g and 0.018, 0.019g, 0.071, 0.069, 0.003, 0.729 g/g of C16:0, C18, C18:1-9c, C18:2-9c12c, C18:3-9c12c15c, C18:3-9z11e13e, respectively, measured with the method, the content of C18:3-9z11e13e of Jinsi tung oil was higher than that of Jingyang tung oil, which means that Jinsi tung oil has a better quality.
Chinese tung oilcultivarfatty acidquantitative analysis
NETL
NSTL
万方数据
维普
