Avaliação in vitro da atividade antibacteriana de Baccharis trimera (LESS.) dc (ASTERACEAE) frente as bactérias de importância médica

Carvalho, Rafaella; Carvalho, Fernanda Souza; Miranda, Vívian Correia; Aleixo, Álan Alex; Magalhães, Juliana Teixeira de; Siqueira, Jaqueline Maria; Herrera, Karina Marjorie Silva; Alves, Luciana Patrícia Lima

doi:10.5433/2316-5200.2013v2n2espp45

Cited by 2 publications

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“…However, for the conditions evaluated by the present study, antimicrobial activity for Gram-negative bacteria was not observed. These bacteria are more resistant to antimicrobials based on natural extracts (Carvalho et al, 2013) because they have phospholipid external layer that is impermeable for solute lipophilic. Additionally, the porins create a barrier against hydrophilic solutes, restricting the penetration of antimicrobial compounds.…”

Section: Resultsmentioning

confidence: 99%

In vitro antibacterial activities of pomegranate extract against standard microorganisms of bovine mastitis

Moreira¹,

Matsumoto²,

Silva³

et al. 2015

J. Med. Plants Res.

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Bovine mastitis is characterized by inflammation of the mammary gland, usually due to bacterial infection, compromising quantity and quality of milk production. This study aimed to determine the antibacterial activity, in vitro, of the hydroalcoholic extract of the pomegranate peel at 10% against standard strains of bovine mastitis. The colonies were adjusted to the concentration of 10 7 mL -1 using UV-visible spectrophotometry, and the extracts were evaluated in quintuplicate in concentrations of 1000, 500, 250, 75, 50 and 25 μg mL -1 . The sensitivity of the strains was determined using the minimum inhibitory concentration and disk diffusion test. Additionally, antioxidant activity and total phenolic content was evaluated. The extract, at concentrations of 500 and 1000 μg mL . Perhaps the presence of other substances in the extract may have been responsible for the antioxidant activity detected. That way, the antioxidant and antibacterial activities of EHPG 10% may represent an important therapeutic potential, particularly for animal health in organic and agroecological production systems.

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Section: Resultsmentioning

confidence: 99%

In vitro antibacterial activities of pomegranate extract against standard microorganisms of bovine mastitis

Moreira¹,

Matsumoto²,

Silva³

et al. 2015

J. Med. Plants Res.

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show abstract

“…Inúmeros trabalhos comprovando a ação farmacológica de extratos e de óleo essencial de espécies de Baccharis têm sido intensamente pesquisados e várias atividades têm sido relatadas, a exemplo de antimicrobiana (KURDELAS et al, 2012;CARVALHO et al, 2013), antioxidante (PÁDUA et al, 2010;VIEIRA et al, 2011;GUIMARÃES et al, 2012), anti-inflamatória (ABAD et al, 2006;BOLLER et al, 2010;OLIVEIRA et al, 2012), leishmanicida, tripanossomicida (PASSERO et al, 2011;GRECCO et al, 2012), antitumoral (OLIVEIRA et al, 2014) e hipoglicêmica (KAPPEL et al, 2012).…”

Section: Introductionunclassified

CONTRIBUTION TO THE PHARMACOBOTANICAL STUDY OF Baccharis: B. cultrata Baker

Bobek

Budel

Nakashima

2015

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Dentre os gêneros de Asteraceae, destaca-se Baccharis L., que inclui mais de 400 espécies, sendo 178 encontradas no Brasil. Baccharis cultrata Baker, popularmente conhecida como “vassoura”, é uma espécie pouco estudada, não havendo estudos farmacobotânicos de caracterização. Objetivou-se neste trabalho analisar as características morfoanatômicas a fim de obter dados farmacobotânicos de identificação e diferenciação das demais Baccharis. Folhas e caules foram submetidos às técnicas usuais em microscopia óptica e eletrônica de varredura. A folha possui ápice truncado com três dentes, contorno obovado, base atenuada, margem foliar inteira e filotaxia oposta. As folhas são anfiestomáticas e os estômatos presentes são do tipo actinocítico, anomocítico e tetracítico. A epiderme da folha apresenta cutícula delgada e estriada e são observados tricomas flageliformes simples unisseriados e glandulares capitados bisseriados. O mesofilo é isobilateral. A nervura central é levemente convexa na face adaxial e plana na face abaxial. O caule apresenta formato praticamente circular com 5 costelas. O córtex apresenta colênquima angular e ocorrem fibras perivasculares apostas ao sistema floemático. Os caracteres farmacobotânicos indicados auxiliam na identificação Baccharis cultrata e na diferenciação das demais Baccharis.

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Avaliação in vitro da atividade antibacteriana de Baccharis trimera (LESS.) dc (ASTERACEAE) frente as bactérias de importância médica

Cited by 2 publications

References 0 publications

In vitro antibacterial activities of pomegranate extract against standard microorganisms of bovine mastitis

In vitro antibacterial activities of pomegranate extract against standard microorganisms of bovine mastitis

CONTRIBUTION TO THE PHARMACOBOTANICAL STUDY OF Baccharis: B. cultrata Baker

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