Figure 1

Pairwise score plots between the two principal components for chromatograms obtained by SHS-GCMS from brown propolis and conifer resins from southern Brazil. The explained variances are shown in the corresponding axes and the overlaps of the colored shaded areas indicate similarities among propolis from General Carneiro, ‘Vila Zulmira sede’ and ‘Vila Zulmira serra’ and resins of Araucaria angustifolia, Pinus taeda and Pinus elliotti at a level of confidence of 95%. Figure was generated by the MetaboAnalyst software, v. 5.0 (https://www.metaboanalyst.ca/).