Avaliação da atividade antimicrobiana do óleo essencial de sucupira (Pterodon emarginatus Vogel)

Ferreira, Sávio Benvindo; Dantas, Ivan Coelho; Catão, Raïssa Mayer Ramalho

doi:10.1590/s1516-05722014000200009

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…Essential oils mainly obtained from fruits and seeds of this species have been extensively studied. Biological activities attributed to these volatile mixtures of substances include antimicrobial [ 5 , 6 ], anti-ulcerogenic, anti-inflammatory [ 7 ], and cytotoxic [ 8 ] properties, besides the control of autoimmune encephalomyelitis [ 9 ]. Seeds of P .…”

Section: Introductionmentioning

confidence: 99%

Development of a Larvicidal Nanoemulsion with Pterodon emarginatus Vogel Oil

et al. 2016

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Pterodon emarginatus Vogel is a Brazilian species that belongs to the family Fabaceae, popularly known as sucupira. Its oil has several biological activities, including potent larvicidal property against Aedes aegypti. This insect is the vector of dengue, a tropical disease that has been considered a critical health problem in developing countries, such as Brazil. Most of dengue control methods involve larvicidal agents suspended or diluted in water and making active lipophilic natural products available is therefore considered a technological challenge. In this context, nanoemulsions appear as viable alternatives to solve this major problem. The present study describes the development of a novel nanoemulsion with larvicidal activity against A. aegypti along with the required Hydrophile Lipophile Balance determination of this oil. It was suggested that the mechanism of action might involve reversible inhibition of acetylcholinesterase and our results also suggest that the P. emarginatus nanoemulsion is not toxic for mammals. Thus, it contributes significantly to alternative integrative practices of dengue control, as well as to develop sucupira based nanoproducts for application in aqueous media.

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Section: Introductionmentioning

confidence: 99%

Development of a Larvicidal Nanoemulsion with Pterodon emarginatus Vogel Oil

et al. 2016

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“…De acordo com Ferreira et al (2014), avaliando o efeito do óleo essencial de alecrim pimenta no teste de fitotoxidez no milho, os sintomas de fitotoxidez surgiram após 12 h decorridas das aplicações nas folhas, relata ainda que as concentrações que apresentaram fitotoxidez, não podem ser utilizadas em testes de controle da doença na planta, porque provocaram murcha seguida de posterior necrose em algumas regiões foliares.…”

Section: Resultsunclassified

Levantamento e uso de plantas medicinais do cerrado tocantinense para o controle alternativo de fitopatógenos

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Ferreira

Mourão

et al. 2019

J. Biotechnol. Biodivers.

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Survey and use from medicinal plants from the cerrado tocantinense for alternative control of phytopathogens.Corn and bean crops are prominent in Brazil and Tocantins. However, it has influenced the productivity loss of these cultivars. Therefore, the present study aimed to survey the medicinal plants of the cerrado tocantinense and to evaluate the fungitoxic potential of essential oils of these plants, aiming at the alternative control of phytopathogens in corn and cowpea. Twenty species of plants used in folk medicine were registered and selected in the city of Peixe, TO. The fungus isolated from corn was B. maydis and from cowpea the fungus R. solani, both cultivated in BDA medium (Potato, Dextrose, Agar), at 25 ± 2ºC in a 12-hour photoperiod under fluorescent light. The promising species in oil production were Buriti (M. flexuosa), Copaiba (C. langsdorfii Def), Eucalyptus (E. globulus), Sucupira Branca (P. emargitatus), and Pequi (C. brasilense). In vitro bioassays with the essential oils were mounted in triplicate at concentrations (1.250, 2.500, 5.000, 10.000 and 50.000 µg mL-1) and the plates were incubated at 25 ° C and evaluated for 10 days. Sterile distilled water was used as the absolute witness. For bean pathogen, there was no inhibition in vitro. The copaiba oil at concentrations 5,000, 10,000 and 50,000 µL mL-1 were efficient in the control of disease in corn plants when applied preventively, being lower than the relative control. Therefore, the oil should be used against other phytopathogens in order to observe its efficiency in controlling other diseases. R E S U M O Palavras-chavesóleos essenciais fungos fitopatogênicos controle biológico mancha de bipolares A cultura do milho e feijão é destaque no Brasil e Tocantins. Entretanto, doenças tem influenciado na perda de produtividade dessas cultivares. Logo, o presente estudo objetivou, fazer um levantamento das plantas medicinais do cerrado tocantinense e avaliar o potencial fungitóxico de óleos essenciais destas plantas, com vistas ao controle alternativo de fitopatógenos em milho e feijão caupi. Foram registradas e selecionadas 20 espécies de plantas utilizadas na medicina popular no Município de Peixe, TO. O fungo isolado do milho foi o B. maydis e do feijão caupi o fungo R. solani, ambos cultivados em meio BDA (Batata, Dextrose, Ágar), a 25 ± 2ºC em fotoperíodo de 12 horas, sob luz fluorescente. As espécies promissoras na produção de óleo foram, Buriti (M. flexuosa), Copaíba (C. langsdorfii Desf), Eucalipto (E. globulus), Sucupira branca (P. emargitatus), e Pequi (C. brasilense). Os bioensaios in vitro com os óleos essenciais foram montados em triplicatas nas concentrações (1.250, 2.500, 5.000, 10.000 e 50.000 µg mL-1) e as placas foram incubadas a 25°C e avaliadas por 10 dias. Água destilada esterilizada foi usada como testemunha absoluta. Para o patógeno do feijão, não houve inibição in vitro. O óleo de copaíba nas concentrações 5.000, 10.000 e 50.000 µL mL-1 mostraram-se eficientes no controle da doença em plantas de milho quando aplicado de...

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“…Em seguida, com o auxílio de um paquímetro, foram realizadas as aferições dos halos de inibição de crescimento bacteriano. Considerando inibição da atividade microbiana as soluções que apresentaram diâmetro superiores a 8 mm (FERREIRA et al, 2014).…”

Section: Methodsunclassified