Data/hora: 08/06/2024 10:18:20

Provedor de dados: | 58
País: | Brazil
Título: | Antibacterial activity of plant extracts and phytochemicals on antibiotic-resistant bacteria
Autores: | Nascimento,Gislene G. F.; Locatelli,Juliana; Freitas,Paulo C.; Silva,Giuliana L.
Data: | 2000-10-01
Ano: | 2000
Palavras-chave: | Plant extracts activity; Medicinal plants; Antimicrobial activity.
Resumo: | The antimicrobial activity of plant extracts and phytochemicals was evaluated with antibiotic susceptible and resistant microorganisms. In addition, the possible synergistic effects when associated with antibiotics were studied. Extracts from the following plants were utilized: Achillea millifolium (yarrow), Caryophyllus aromaticus (clove), Melissa offficinalis (lemon-balm), Ocimun basilucum (basil), Psidium guajava (guava), Punica granatum (pomegranate), Rosmarinus officinalis (rosemary), Salvia officinalis (sage), Syzygyum joabolanum (jambolan) and Thymus vulgaris (thyme). The phytochemicals benzoic acid, cinnamic acid, eugenol and farnesol were also utilized. The highest antimicrobial potentials were observed for the extracts of Caryophyllus aromaticus and Syzygyum joabolanum, which inhibited 64.2 and 57.1% of the tested microorganisms, respectively, with higher activity against antibiotic-resistant bacteria (83.3%). Sage and yarrow extracts did not present any antimicrobial activity. Association of antibiotics and plant extracts showed synergistic antibacterial activity against antibiotic-resistant bacteria. The results obtained with Pseudomonas aeruginosa was particularly interesting, since it was inhibited by clove, jambolan, pomegranate and thyme extracts. This inhibition was observed with the individual extracts and when they were used in lower concentrations with ineffective antibiotics.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400003
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822000000400003
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.31 n.4 2000
Fonte: | info:eu-repo/semantics/openAccess