GC-MS Analysis of Volatile Components in Different Parts of Dalbergia Odorifera T.Chen
Objective:To analyze and compare the chemical constituents of volatile components from heartwood,leaves,seeds and sapwood of Dalbergia odorifera T.Chen.Methods:The technique of gas chromatographic mass spectrometry(GC-MS)along with headspace injection method was employed to discriminate the Dalbergia odorifera T.Chen,getting Dalbergia odorifera T.Chen the total ion chromatorgraphy of the different parts of the volatile components,the relative percentage content of each component was determined by area normalization method.Results:From Dalbergia odorifera T.Chen heartwood,leaves,seeds and sapwood respectively identified 20,11,13,8 kinds of volatile components,accounting for 80.77%,68.84%,94.69%and 85.52%,respectively.A total of 44 compounds were identified from heartwood,leaves,seeds and sapwood,of which,there was 1 common ingredient,nerolidol.The heartwood,leaves and sapwood have 2 common ingredients;the heartwood and leaves have 2 common ingredients;the heartwood and seeds have 1 common ingredient;the heartwood and sapwood have 3 common ingredients.The main component of the essential oil in the heartwood and leaves,was nerolidol,with the relative content of 41.99%and 18.67%,respectively.The main component of the essential oil in the seeds,was Tetradecamethylcyclohep tasiloxane,with the relative content of 22.91%,The main component of the essential oil in the sapwood,was 4-methylpyridine 1-oxide,with the relative content of 51.86%.Conclusion:Dalbergia odorifera T.Chen heartwood and leaves,seeds and sapwood volatile components have similarities,but content difference is big,which provides a direct theoretical basis for exploring dalbergiae substitute resources and improving the resource utilization of leaves,seeds and sapwood.
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