Antimicrobial activity of hydroalcoholic extracts from genipap, baru and taruma

作者：dos Santos Fabiola Brandao^*; Lima Ramos Maria Isabel; Miyagusku Luciana

来源：Ciencia Rural, 2017, 47(8): e20160252.

DOI：10.1590/0103-8478cr20160252

• Cerrado fruits
• antibiotics
• Genipa americana
• Dipteryx alata
• Vitex cymosa

Microbial resistance is a serious public health problem, which has led to the search for alternative treatments to replace antibiotics, including studies to evaluate the antimicrobial potential of species in Brazil's Cerrado. Therefore, the present study aimed to evaluate the antimicrobial activity of hydroalcoholic extracts of genipap, baru, and taruma against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans using disc diffusion tests and microdilution. Results indicated that all genipap extracts showed inhibition zones and minimum inhibitory concentrations (MICs) and minimum microbicidal concentrations (MMCs) ranging between 150 mu g/mL and 940 mu g/mL against all microorganisms tested. Baru pulp extracts exhibited larger inhibition zones against S. aureus and MIC and MMC results between 150 mu g/mL and 1000 mu g/mL against all microorganisms except P. aeruginosa. The taruma 30% pulp and seed extracts exhibited the largest halos against S. aureus and MIC and MMC results were between 150 mu g/mL and 1000 mu g/mL against all microorganisms except C. albicans. All fruits displayed potential for antimicrobial activity, particularly the genipap's pulp extracts. Further studies should be performed to identify compounds with antimicrobial activity and to test their applicability as preservatives in foods, as alternatives to antibiotic growth promoters, and as sanitizing agents.

• 出版日期2017