ABSTRACT Fungi of the genus Aspergillus may promote damage to the physiological quality of forest seeds, and plant extracts have been used to control microflora associated with these seeds. Thus, the aim of the present work was to perform the phytochemical characterization of ethanolic and aqueous extracts obtained from Eugenia dysenterica leaves (cagaita), as well as to evaluate the effect of these extracts on the development of Aspergillus sp. isolated from Hymenaea stigonocarpa seeds (jatobá-do-cerrado). For this, qualitative phytochemical analysis of extracts was carried out and their effect on Aspergillus sp mycelial growth, sporulation and spore germination was evaluated. As a result, phenols, hydrolysable tannins, flavonols, flavanones, xanthones, flavones, free steroids and saponins were found in both extracts, which could be used in the search for new antifungal compounds in the treatment of stored forest seeds, since extracts have secondary compounds that allow inhibiting Aspergillus sp mycelial growth.

As análises qualitativa e quantitativa dos óleos essenciais obtidos das resinas das espécies Protium heptaphyllum (Aubl.) Marchand subespécie ulei (Swat) Daly (PHU) e Protium heptaphyllum (Aubl.) Marchand subespécie heptaphyllum (PHH), Burseraceae, foram realizadas utilizando cromatografia em fase gasosa acoplado a um espectrômetro de massa (CG-EM) e cromatografia a gás com detector de chama (CG-DIC). As resinas foram coletadas no Município de Cruzeiro do Sul, Acre, Brasil. O óleo essencial das oleoresinas foi extraído por hidrodestilação fornecendo rendimento 8,6% para PHU e 11,3% para PHH. Os monoterpenos terpinoleno (42.31%) e p-cimeno (39.93%) foram os constituintes principais para PHU e PHH, respectivamente.

Qualitative and quantitative analyses of the volatile constituents from resin of Protium heptaphyllum (Aubl.) Marchand subsp. ulei (Swat) Daly (PHU), and Protium heptaphyllum (Aubl.) Marchand subsp. heptaphyllum (PHH), Burseraceae were performed using GC-MS and GC-FID. The resins were collected around the city of Cruzeiro do Sul, state of Acre, Brazil. Essential oils from the two subspecies were extracted by hydrodistillation with a yield of 8.6% (PHU) and 11.3% (PHH); the main components were terpinolene (42.31%) and p-cymene (39.93%) for subspecies ulei (PHU) and heptaphyllum (PHH), respectively.