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Abstract
Essential oils of Mansoa standleyi collected at four municipalities of the State of Pará were obtained by hydro-distillation and analyzed by GC-FID and GC/MS. All samples analyzed showed a high content of sulfur compounds, among them diallyl disulfide (42.2–69.2%) and diallyl trisulfide (20.1–37.0%) were major. Oils from the leaves, stems, roots, tendrils, seeds, fruit pulp and fruit skin were obtained separately: allyl disulfide was major in seed oil (78.1%), and pulp fruit oil (70.2%), followed by the leaf and stem oils (60.2%). The lowest amount of ally disulfide was in the root oil (51.1%). In all samples the amount of diallyl disulfide was counterbalanced by the amount of diallyl trisulfide.