title: Chemical Composition and Antimicrobial Potential of Palm Leaf Extracts from Babaçu (Attalea speciosa), Buriti (Mauritia flexuosa), and Macaúba (Acrocomia aculeata).
abstract: Babaçu (A. speciosa), Buriti (M. flexuosa), and Macaúba (A. aculeata) are palm trees typical of the ecotone area between Cerrado and the Amazon rainforest. The purpose of this study was to evaluate the antimicrobial potential of the extracts prepared from the leaves of those palms as well as determine their chemical compositions. The ethanol extracts were prepared in a Soxhlet apparatus and tested by disk diffusion and agar dilution technique against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, and Candida parapsilosis. However, there was no significant activity at concentrations of 25, 50, and 100 mg·Ml(-1). Moreover, the phytochemical analysis revealed the presence of tannins, flavonoids, catechins, steroids, triterpenes, and saponins. Gas chromatography (GC/MS) analysis also identified organic acids, such as capric (decanoic) acid, lauric (dodecanoic) acid, myristic (tetradecanoic) acid, phthalic (1,2-benzenedicarboxylic) acid, palmitic (hexadecanoic) acid, stearic (octadecanoic) acid, linoleic (9,12-octadecadienoic) acid (omega-6), linolenic (octadecatrienoic) acid (omega-3), and the terpenes citronellol and phytol. Based on the chemical composition in the palm leaf extracts, the palms have the potential to be useful in the food, cosmetic, and pharmaceutical industries.
authors.affiliation: Laboratório de Microbiologia Ambiental e Biotecnologia (LAMBIO), Universidade Federal do Tocantins, 77001-923 Palmas, TO, Brazil.
authors.forename: Adriana Idalina Torcato
authors.identifier: 0000-0001-5048-7767
authors.initials: AI
authors.lastname: de Oliveira
authors.affiliation: Centro de Estudos do Mar (CEM), Federal University of Paraná, 83255-976 Pontal do Paraná, PR, Brazil.
authors.forename: Talal Suleiman
authors.initials: TS
authors.lastname: Mahmoud
authors.affiliation: Laboratory of Basic and Health Sciences, Federal University of Tocantins, 77001-923 Palmas, TO, Brazil.
authors.forename: Guilherme Nobre L
authors.initials: GN
authors.lastname: do Nascimento
authors.affiliation: Laboratório de Microbiologia Ambiental e Biotecnologia (LAMBIO), Universidade Federal do Tocantins, 77001-923 Palmas, TO, Brazil.
authors.forename: Juliana Fonseca Moreira
authors.initials: JF
authors.lastname: da Silva
authors.affiliation: Laboratório de Microbiologia Ambiental e Biotecnologia (LAMBIO), Universidade Federal do Tocantins, 77001-923 Palmas, TO, Brazil.
authors.forename: Raphael Sanzio
authors.identifier: 0000-0001-7207-4437
authors.initials: RS
authors.lastname: Pimenta
authors.affiliation: Laboratório de Microbiologia Ambiental e Biotecnologia (LAMBIO), Universidade Federal do Tocantins, 77001-923 Palmas, TO, Brazil.
authors.forename: Paula Benevides
authors.identifier: 0000-0002-5050-5766
authors.initials: PB
authors.lastname: de Morais
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology*; D028023:Arecaceae / Q000737:chemistry*; D001419:Bacteria / Q000187:drug effects; D005658:Fungi / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry
chemical_list: D000890:Anti-Infective Agents; D010936:Plant Extracts