Gas Chromatography-Mass Spectrometry Analysis of the Chemical Composition of Volatile Oil from Different Parts of Tsoongiodendron odorum
To study the chemical composition,relative content,and differences of four different parts of the fruit shell,aril,seed,and leaf of Tsoongiodendron odorum,to explore the use value of its tree species,and to provide a theoretical basis for its development and utilization,the volatile oil from different parts of T.odorum was extracted by steam distillation.The chemi-cal constituents of volatile oils were analyzed by gas chromatography-mass spectrometry(GC-MS),and the volatile compo-nents were analyzed by principal component analysis.The results showed significant differences in the composition and con-tent of volatile oils in different parts of T.odorum.One hundred and seventy-two components were identified from the four parts of volatile oils,including 16 alcohols,two ethers,15 esters,nine aldehydes,three acids,14 ketones,25 alkanes,74 ole-fins,and 14 other types.There are seven identical components in T.odorum,and the volatile oils in different parts have unique components,including 72 kinds of fruit shells,14 kinds of arils,two kinds of seeds,and 14 kinds of leaves.Principal compo-nent analysis of 29 main substances was carried out,and three principal components were extracted,with a cumulative vari-ance contribution rate of 100%.(+)-Calarene was strongly negatively correlated with the first principal component.Phenylethyl alcohol,(1S)-(+)-3-carene,o-cymol,alpha-ocimene,and beta-elemene were strongly positively correlated with the first principal component.Cedrene was also highly positively correlated with the second principal component.The contri-bution rate of the third principal component was 23.097%,of which terpinolene was highly negatively correlated.These sub-stances are the key components affecting the volatile oil of T.odorum.Among the eight highly correlated substances,six are olefins.In summary,olefins are the main components of different parts of T.odorum,which can provide a theoretical basis for its comprehensive utilization of resources.
万方数据
维普
