Interest in the study of bioactive molecules present in plant organs such as root, leaves, stems or flowers, has increased significantly in search of applications in fields such as medicine and agriculture, mainly due to the bactericidal, antifungal and insecticides properties found in different plant species. In this study, leaf and bark extracts obtained at reduced pressure of Z. caribaeum were evaluated for their antibacterial and antifungal activity using the Kirby-Bauer agar disk diffusion technique. We found that extracts from the bark of this tree show a greater biological activity compared to extracts obtained from leaf, mainly against Grampositive bacteria such as S. aureus and S. mutans. However, there was no significant biological activity against gram-negative bacteria such as E. coli or Morganella sp. The composition of the extract determined by gas chromatography coupled to mass spectrophotometry (GC-MS), reveal the presence of the compound 3.5-dihydroxy-6-methyl-2.3-dihydro-4H-piran-one (32.8%) as a majority compound, which has been reported with antibacterial properties. The biological activity of the extracts of Z. caribeaum represents a potential source for the development of drugs for the control of microbial diseases.