Comparison of the differences in volatile oils of Valeriana officinalis L. var. latifolia Miq. from different origins based on electronic nose and SPME-GC-MS techniques--Raw Data

In this study, the electronic nose technique was used for the preliminary detection of the volatile constituent categories of VRR; the solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) technique was used for detailed compositional analysis of the volatile oils of VRR, and combined with principal component analysis (PCA), hierarchical cluster analysis (HCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) for the multivariate analysis.

It was found that the highest response values were determined by electronic nose for the volatile components containing nitrogen-oxygen and sulfur-containing elements, and the results of the double-labeling plot indicated that the strongest correlation between nitrogen-oxygen containing compounds and sulfur-containing volatile components with T5 (Dewang Town, Jiangkou County, Guizhou Province). A total of 80 volatile components were identified by SPME-GC-MS, among which the maker components and the highest relative contents of lobyl acetate (22.99%-54.55%) were found.