000			03121nab a2200313 i 4500
003			BR-BrBNA
005			20240927164421.0
008			240927b2022 bl.qr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aF60
100			_aVolpi, Gabriel Baraldi
100			_aRosa, Genesio Mario da
100			_aFlach, Kauane Andressa
100			_aToebe , Marcos
100			_aBones, Ubiratan Alegransi
100			_aCosta Junior, Jefferson Alves da
245			_aEvaluation of the antibacterial potential of crude extracts and essential oils of three Baccharis species
500			_aPublicação on-line; 33 ref.; 5 tables; Summary (En)
520			_a ABSTRACT The purpose of this work was to analyze the antimicrobial potential of Baccharis trimera, B. gaudichaudiana and B. dracunculifolia, which were used to perform antibiogram tests, with Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and a wild microorganism isolated from soil, which was submitted to molecular identifi cation characterized as Bacillus cereus. The sensitivity or resistance of each microorganism subjected to hydroalcoholic extracts and essential oils of the three plants was analyzed, and the inhibition was quantitatively evaluated according to the halo formed around the disks of paper. Data were subjected to statistical evaluation using a completely randomized design, in a three-factor split-plot scheme and four replications. The results of the microorganism susceptibility tests allow us to infer that B. trimera (Less.) DC. has a greater inhibitory action in the essential oils. The two microorganisms with Gram-positive characteristic cell walls (B. cereus and S. aureus) suffered growth inhibition by the three species of Baccharis, both in essential oils and in extracts. In the case of Gram-negative (E. coli and P. aeruginosa) there was no growth inhibition at the concentrations of extracts and essential oils used. The microorganism B. cereus suffered a greater inhibitory infl uence from the species B. trimera and B. gaudichaudiana. Chemical analysis showed similarity of fi ve compounds in the tested species, namely caryophyllene; bicyclo[4.4.0]dec-1-ene, 2-isopropyl-5- methyl-9-methylene-; y-gurjunene; D-amorphene, and spathulenol. Some of these are already known in the literature due to their antibacterial capacity. The sum, in percentage, of these compounds for B. dracunculifolia, B. gaudichaudiana and B. trimera was 39.08, 31.45 and 37.15%, respectively. Keywords: Antibacterial potential, Genetic identifi cation, Medicinal plants, methodologies of extraction.
650			_aPLANTA MEDICINAL
650			_aGENÉTICA
650			_aÓLEO ESSENCIAL
650			_aEXTRATO
650			_aBACCHARIS
773	0		_03543 _9344885 _dBotucatu-SP Instituto de Biociências - Departamento de Química e Bioquímica 1998 _o2024-5213 _tRevista Brasileira de Plantas Medicinais (Brazil) _x1516-0572 _gv. 24(3) p. 118-125; (2022) _wBR2024002612
856			_uhttps://www.sbpmed.org.br/admin/files/papers/file_Ss6sjaoE0Qn7.pdf
942			_cANA
999			_c327863 _d327863