RESUMO
Background: Clinical evidences suggest antimicrobial activities of a new oil extract mixture of Hypericum perforatum and Azadirachta indica, included in a polymeric scaffold (or Hyperoil™ Polimeric Substrate - HPS). Methods: Bacteriostatic activity was investigated on selected strains of Staphylococcus aureus (ATCC® 12598™), Pseudomonas aeruginosa (ATCC® 10145™) and Klebsiella ozaenae AM through standardized in vitro tests. Results and Conclusion: All bacterial strains were stabilized or reduced in size after 3 and 24 hours contact with the HPS if compared to the empty polymeric scaffolds. Results showed the bacteriostatic effect of HPS that, added with its anti-inflammatory properties, could explain its tissue repair effects observed in vivo.