Consulta: subjectFacets:"Essential oils"
Registros recuperados: 58
Data/hora: 06/06/2024 04:36:40

MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT
Provedor de dados: Engenharia Agrícola
Autores: Silveira,Jeniffer C.; Costa,Andréa O. S. da; Costa Junior,Esly F. da.
ABSTRACT: Essential oils are complex mixtures of volatile compounds found at low levels in aromatic plant specific parts. Soluble in organic solvents, these oils are characterized by their fragrance and antimicrobial activity, being widely used in industries. The mathematical modeling of essential oil extraction is a relevant step in the project of industrial plants because it is about achieving optimized operational conditions. A model is available in the literature describing the extraction process of basil essential oil, based on diffusion within the leaf. Parametric equations were tested for the variable diffusion coefficient with the concentration, resulting in a significant improvement in the description process, when compared to papers presented in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Concentration variable diffusion; Parameter estimation; Essential oils.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400717

Recomendações do cultivo de pimenta-longa para a produção de óleos essenciais, ricos em safrol.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SÁ, C. P. de; GOMES, F. C. da R.
A pimenta-longa (Piper hispidinervum), espécie nativa do Estado do Acre, foi identificada por meio do Programa de Triagem de Plantas Aromáticas da Amazônia, realizada na década de 1970 pelo Instituto Nacional de Pesquisas da Amazônia (Inpa) e pelo Museu Paraense Emílio Goeldi (MPEG). A descoberta de altos teores de safrol na pimenta-longa trouxe a expectativa de sua domesticação para produção sustentável de óleo essencial.Considerando que a pimenta-longa está em um processo de domesticação, existe a necessidade do refinamento das tecnologias que estão disponíveis para os produtores. A tecnologia recomendada compreende a formação de mudas, plantio no local definitivo, corte das plantas na altura, aproximada de 10 cm do solo, secagem, destilação e...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Safrol; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Pimenta Longa; Piper Hispidinervum; Óleo Essencial; Inseticida de Origem Vegetal; Piper longum; Safrole; Essential oils; Botanical insecticides.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/506850

Zoneamento e caracterização de habitats naturais de pimenta longa (Piper hispidinervum) no Acre.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: PIMENTEL, F. A.; PEREIRA, J. B. M.; OLIVEIRA, M. N. de.
A proibição de corte do sassafrás (Ocotea pretiosa Mezz), utilizado como principal fonte de safrol natural, por parte do governo brasileiro, em matas primárias da floresta atlântica, na década de 90, levou grandes indústrias químicas processadoras de fragrâncias e inseticidas a buscarem novas fontes alternativas de fenil-éter. A descoberta do safrol na espécie Piper hispidinervum, vulgarmente conhecida por pimenta longa feita por um grupo de pesquisadores do Instituto Nacional de Pesquisa da Amazônia (Inpa), na década de 70, despertou, nos últimos anos, o interesse de indústrias nacionais e estrangeiras para esta nova fonte alternativa. Com base nesses aspectos, a Embrapa-CPAF/AC, em parceria com o Museu Paraense Emílio Goeldi-PA e Overseas Development...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Aceites esenciales; Safrol; Zonificación agrícola.; Pimenta longa; Piper hispidinervum; Óleo essencial; Levantamento populacional; Habitat; Piper longum; Essential oils; Safrole; Agricultural zoning; Hábitats.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/503350

Técnicas para colheita, beneficiamento e armazenamento de sementes de pimenta longa (Piper hispidinervum).
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: PIMENTEL, F. A.
Após a divulgação da cultura da pimenta longa, produtores, empresários e pesquisadores das mais diversas regiões do país têm procurado a Embrapa Acre, interessados em obter informações e material genético para estabelecimento da cultura. Este fato está associado à procura de alternativas de renda por parte de pequenos produtores rurais que buscam produtos com valores agregados e mercado garantido. A demanda de safrol natural no mercado nacional e internacional é crescente, visto que os únicos países fornecedores deste produto (China e Vietnã) correm sérios riscos de não mais o produzirem a longo prazo, devido à extração predatória da espécie explorada. Neste sentido é que nos Estados do Acre e Rondônia vem sendo estimulado o cultivo da pimenta longa, com...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Western Amazon; Acre; Rio Branco (AC); Aceites esenciales; Amazonia Ocidental; Tecnología de procesamiento.; Almacenamiento de semillas; Safrol; Plantación; Cosecha; Plantio; Pimenta longa; Piper hispidinervum; Óleo essencial; Produção; Armazenamento.; Semente; Beneficiamento; Colheita; Processing technology; Piper longum; Seed storage.; Essential oils; Safrole; Harvesting; Planting.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/500863

Avaliação de plantas com potencial inseticida no controle da Vaquinha-do-feijoeiro (Cerotoma tingomarianus Bechyné).
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: FAZOLIN, M.; ESTRELA, J. L. V.; LIMA, A. P. de; ARGOLO, V. M.
Avaliou-se a atividade inseticida de extratos aquosos e alcoólicos de várias partes de plantas de 13 espécies vegetais, exóticas e nativas da Amazônia brasileira, em adultos de Cerotoma tingomarianus. Os extratos foram testados em diferentes concentrações e modo de preparo, sendo pulverizados em plantas de feijão comum (Phaseolus vulgaris cv. Pérola). Os parâmetros avaliados foram efeito deterrente para alimentação e mortalidade. A rotenona a 0,13% mostrou-se promissora para o controle de C. tingomarianus, não apenas por causar mortalidade do inseto (26,8%), como também pelo efeito deterrente de alimentação. O óleo de andiroba, nas concentrações 1,5% e 1,0%, raízes em infusão de P. alliacea a 2%, nim a 7%, sementes de cinamomo a 12% e folhas em infusão de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Vaquinha do feijoeiro; Cerotoma tingomarianus; Guiné; Guinea hen weed; Neem; Melia toosendan; Bracken fern; Nuez del Brasil; Copaifera spp; Erythrina spp; Aceites essenciales; Frijoles; Plagas de las plantas.; Pimentón; Insecticidas botánicos; Timbó; Praga de planta; Inseticida de origem vegetal; Erva de Santa Maria; Chenopodium ambrosioides; Nim; Azadirachta indica; Cinamomo; Melia azedarach; Piper hispidinervum; Andiroba; Carapa guianensis; Castanha do pará; Bertholletia excelsa; Copaíba; Derris; Óleo essencial; Feijão; Phaseolus vulgaris.; Pimenta; Piper nigrum; Samambaia dos pastos; Pteridium aquilinum; Pimentão; Capsicum annuum; Pimenta longa; Brazil nuts; Botanical insecticides; Plant pests; Essential oils; Petiveria alliacea; Beans.; Paprika.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495907

Seletividade da mistura de óleos essenciais a parasitoides de ninfas de Aleurodicus cocois em cajueiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: DIAS, N. da S.; MONTEIRO, N. V.; SARAIVA, W. V. A.; SOUZA, A. G. L. DE; SANTOS, T. C. DOS; ZOCOLO, G. J.; INNECCO, R.; SILVA, C. S. B. D.
A mosca-branca-do-cajueiro, Aleurodicus cocois (Hemiptera: Aleyrodidae), é uma das principais pragas da cajucultura. O uso de óleos essenciais e seus constituintes são um meio alternativo no controle de pragas. De fato, já foi demonstrado que o uso ombinado dos óleos de Lippia sidoides e Cymbopogon winterianum controla eficientemente A. cocois. Todavia, o impacto dessa mistura sobre inimigos naturais dessa praga tem sido pouco investigado. Diante disso, o presente estudo foi conduzido visando conhecer a seletividade da combinação dos óleos essenciais de L. sidoides e C. winterianum na proporção de 3:2, respectivamente, sobre as espécies Encarsia hispida e Encarsia tamaulipeca, parasitoides de ninfas de A. cocois, além de outros parasitoides, cujas espécies...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Parasitoides; Mosca-branca-do-cajueiro; Cashew whitefly; Anacardium Occidentale; Aleurodicus Cocois; Óleo Essencial; Praga; Essential oils; Parasitoids; Anacardium.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126245

Produção e dispersão de sementes em pimenta longa (Piper hispidinervum).
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SILVA, A. C. P. R. da; OLIVEIRA, M. N. de.
As características que influem na distribuição da variação genética nas espécies de plantas incluem a distribuição geográfica da espécie, o tamanho efetivo das populações, o modo de reprodução, o sistema de cruzamento, o mecanismo de dispersão de sementes e o estágio da sucessão em que a espécie é freqüente. Para iniciar um trabalho de domesticação e escolha do melhor método de melhoramento a ser utilizado, é premente que tais informações sejam conhecidas. A pimenta longa (Piper hispidinervum) é uma planta de ocorrência no Estado do Acre e com grande interesse econômico devido à produção de um óleo essencial rico em safrol. O objetivo do presente trabalho foi conhecer o sistema de produção e dispersão de sementes da espécie para utilizar na conservação da...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Productividad de semillas; Diseminación de semillas; Aceites essenciales; Pipe hispidinervum; Variación genética.; Safrol; Melhoramento genético vegetal; Pimenta longa; Óleo essencial; Produção de sementes; Dispersão de semente; Variação genética.; Plant breeding; Piper longum; Essential oils; Safrole; Seed productivity; Seed dispersal; Genetic variation.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495159

Caracterização botânica e química de três espécies do gênero piper no Acre.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SILVA, A. C. P. R. da; OLIVEIRA, M. N. de.
A pimenta longa (Piper hispidinervum) produz óleos essenciais ricos em safrol, um fenil éter que ocorre como componente volátil, sendo utilizado como precursor na fabricação de inseticidas biodegradáveis, cosméticos e produtos farmacêuticos. Existem dúvidas com relação à identificação botânica das espécies de Piper produtoras de safrol, podendo ser Piper hispidinervum ou Piper aduncum. O Banco Ativo de Germoplasma de Piper da Embrapa Acre possui acessos de 11 municípios do estado do Acre. O material foi coletado, prensado e seco, e as amostras enviadas ao Jardim Botânico do Rio de Janeiro para classificação e ao Museu Paraense Emilio Goeldi para análise química. Foram identificadas três espécies de Piper: hispidinervum, hispidum e aduncum, com médias de...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Classificação botânica; Acre; Amazônia Ocidental; Classificação de planta; Aceites essenciales; Análisis químico; Composición botánica; Safrol.; Óleo essencial; Análise Química; Pimenta Longa; Piper Hispidinervum.; Piper longum; Piper hispidum; Essential oils; Safrole; Chemical analysis; Botanical composition; Piper aduncum.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495193

Eficácia do óleo essencial de Piper aduncum L. (Piperaceae) para o controle de Diaphorina citri Kuwayama.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: VOLPE, H. X. L.; FAZOLIN, M.; MAGNANI, R. F.; GARCIA, R. B.; BARBOSA, J. C.; MIRANDA, M. P. de.
O óleo essencial de Piper aduncum (OEPA) contém dilapiol, comprovadamente eficaz no controle de insetos-praga de diversas culturas. Esta pesquisa teve por objetivo avaliar a eficácia do OEPA em ninfas e adultos de Diaphorina citri (Hemiptera: Psyllidae) em condições laboratoriais e a repelência para adultos. Foram determinadas as concentrações de dilapiol OEPA (69,3%, 79,4%, 85,4% e 99,9%) adicionadas a 0,025% de adjuvante (Silwet®) para serem pulverizadas em Citrus sinensis, avaliando-se a fitotoxidade. As concentrações com baixa e moderada toxidade às plantas de citros foram avaliadas no controle de D. citri. Em ninfas e adultos, a mortalidade foi avaliada 1, 3 e 7 dias após a aplicação. Finalmente, os tratamentos eficazes para o controle de adultos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Dilapiol; Dillapiol; Psilídeo dos citros; Plagas de plantas; Asian citrus psyllid; Insecticidas botánicos; Aceites esenciales; Naranjas; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Praga de Planta; Inseticida de Origem Vegetal; Pimenta de Macaco; Óleo Essencial; Laranja; Citrus Sinensis; Campo Experimental; Plant pests; Diaphorina citri; Botanical insecticides; Piper aduncum; Essential oils; Oranges.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1096556

O potencial de manejo de populações nativas de pimenta longa (Piper hispidinervum) em áreas de reserva extrativista no Estado do Acre.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MIRANDA, E. M. de.
Acredita-se que as populações nativas de Piper hispidinervum, com elevado teor de safrol, que ocorrem abundantemente em áreas de capoeira e pastagens degradadas, necessitam ser melhor estudadas e manejadas com fins produtivos. O conhecimento da auto-ecologia da espécie é fundamental para a proposição e desenvolvimento de técnicas de manejo que permitam o aproveitamento deste valioso recurso. O objetivo deste trabalho foi levantar o potencial de exploração das populações de pimenta longa presentes na Resex Chico Mendes e determinar algumas características ecológicas de uma dessas populações para a produção de óleo essencial com alto teor de safrol.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: RESEX Chico Mendes; Seringal Cachoeira; Cooperativa Agroextrativista de Xapuri (AC); Xapuri (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Safrol.; Rendimiento de los cultivos; Análisis de costo-beneficio; Aceites essenciales; Pimenta longa; População de planta; Óleo essencial; Produção; Características Agronômicas; Análise de custo-benefício; Piper hispidinervum; Flora.; Agronomic traits; Safrole; Crop yield; Cost benefit analysis.; Piper longum; Essential oils.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495132

ÓLEO essencial de Pimenta-de-Macaco, Piper aduncum L. (Piperaceae), como inseticida botânico.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
A pimenta-de-macaco, Piper aduncum L. (Piperaceae), é uma planta muito encontrada na Amazônia. Estudos desenvolvidos pela Embrapa Acre, a partir de plantas selecionadas no Banco Ativo de Germoplasma, apontaram que o óleo essencial da pimenta-de-macaco apresenta um ótimo potencial como inseticida botânico.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Plagas de plantas; Insecticidas botánicos; Aceites esenciales; Dilapiol; Adopción de innovaciones; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Praga de Planta; Inseticida de Origem Vegetal; Pimenta de Macaco; Óleo Essencial; Adoção de Inovações; Transferência de Tecnologia; Plant pests; Piper aduncum; Botanical insecticides; Essential oils; Innovation adoption; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124179

How chemical compounds affect fruit bats' plant interactions.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: PAROLIN, L. C.; MIKICH, S. B.; HANSEL, F. A.; BIANCONI, G. V.
Fruit bats are known to be able to discriminate, select, and track the essential oils of their preferred fruits. A few years ago, our research group hypothesized, experimented, and confirmed that these bats can be attracted with essential oils only – concentrated volatile aromas – of their preferred fruits both in forested and open areas. These findings led to the proposal of a restoration tool that uses essential oils of chiropterochoric fruits (fruits eaten by bats) to attract seed-dispersing bats to degraded areas with the objective to increase seed arrival and germination.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Olfaction; Morcego; Óleo Essencial; Chiroptera; Essential oils; Mutualism.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1116136

Mapeamento e caracterização de habitats naturais de pimenta longa (Piper hispidinervum) no município de Brasiléia.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: PIMENTEL, F. A.; PINHEIRO, P. S. N.
A proibição por parte do governo brasileiro da exploração do sassafrás (Ocotea pretiosa Mezz), utilizado como principal fonte de safrol natural, em matas primárias da floresta atlântica, na década de 90, levou grandes indústrias químicas processadoras de fragrâncias e inseticidas a buscar novas fontes alternativas deste fenil-éter. A descoberta do safrol na espécie Piper hispidinervum, vulgarmente conhecida como pimenta longa, no Estado do Acre, feita por um grupo de pesquisadores do Inpa na década de 70, despertou, nos últimos anos, grande interesse de indústrias nacionais e estrangeiras em relação a esta fonte alternativa. Posteriormente, na década de 90, pesquisadores da Embrapa Acre descobriram que os habitats naturais da espécie estavam somente...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Brasiléia (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Safrol.; Distribución de la poblacion; Aceites essenciales; Pimenta longa; Piper hispidinervum; Óleo essencial; Habitat; Levantamento populacional; Características Agronômicas.; Piper longum; Essential oils; Safrole; Agronomic traits; Population distribution; Hábitats.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495190

Efeito da época e da freqüência de corte da pimenta longa (Piper hispidinervum) no rendimento de óleo essencial.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: BERGO, C. L.; SILVA, M. R. da.
O objetivo desta pesquisa é definir a melhor época (mês) e a frequência de corte da pimenta longa, buscando a maximização do rendimento de óleo.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Corte; Óleo Essencial; Pimenta Longa; Piper Hispidinervum; Piper longum; Essential oils.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/497903

Caracterização e avaliação produtiva de uma população nativa de pimenta longa (Piper hispidinervum C. DC.) no Seringal Cachoeira, AC.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MIRANDA, E. M. de.
O conhecimento da autoecologia da espécie é de fundamental importância para esta proposição e para o desenvolvimento de técnicas de manejo que permitam o aproveitamento deste valioso recurso. O objetivo deste trabalho foi determinar algumas características demográficas, ecológicas e produtivas de uma população de pimenta longa, em área de ocorrência natural e avaliar a possibilidade do seu manejo para a produção de óleo essencial com alto teor de safrol.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Extrativismo vegetal; Manejo sustentado; Sustainable management; Viabilidade econômica; Gestión sostenible; Projeto de Assentamento Extrativista Chico Mendes; Seringal Cachoeira; Xapuri (AC); Acre; Amazônia Ocidental; Safrol; Aceites essenciales; Amazonia occidental; Sostenibilidad económica; Western amazon; Pimenta longa; Piper hispidinervum; Óleo essencial; Características Agronômicas; Piper longum; Agronomic traits; Economic sustainability; Essential oils; Safrole.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/511404

Biological properties of medicinal plants: a review of their antimicrobial activity
Provedor de dados: Journal of Venomous Animals and Toxins Including Tropical Diseases
Autores: Silva,NCC; Fernandes Júnior,A.
Plants have been used for thousands of years to flavor and conserve food, to treat health disorders and to prevent diseases including epidemics. The knowledge of their healing properties has been transmitted over the centuries within and among human communities. Active compounds produced during secondary vegetal metabolism are usually responsible for the biological properties of some plant species used throughout the globe for various purposes, including treatment of infectious diseases. Currently, data on the antimicrobial activity of numerous plants, so far considered empirical, have been scientifically confirmed, concomitantly with the increasing number of reports on pathogenic microorganisms resistant to antimicrobials. Products derived from plants may...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicinal plants; Phytochemistry; Antimicrobial activity; Plant extracts; Essential oils; Synergism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000300006

Potencializando o Papel dos Morcegos Frugívoros na Recuperação de Áreas Degradadas
Provedor de dados: PFB - Pesquisa Florestal Brasileira
Autores: Mikich, Sandra Bos; Bianconi, Gledson Vigiano.
Os morcegos frugívoros estão entre os principais dispersores de sementes, portanto, técnicas que potencializem esse papel ecológico podem ter grande aplicação na recuperação de ambientes florestais. Nesse sentido, testes com óleos essenciais isolados de frutos quiropterocóricos maduros mostraram que eles podem atrair morcegos frugívoros no interior de remanescentes florestais e em áreas abertas. Além disso, os resultados revelaram que os indivíduos atraídos já haviam se alimentado, visto que a maioria de suas amostras fecais continham sementes. Sendo assim, o uso de óleos essenciais de frutos consumidos por morcegos frugívoros potencialmente incrementa a chuva de sementes em locais específicos, como por exemplo ao longo de rios onde seja necessário...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Dispersão de sementes; Óleos essenciais Chiroptera; Essential oils; Seed dispersal.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/233

Essential oil and phototoxic compounds in Clibadium surinamense L. and Montanoa grandiflora D.C. (Asteraceae)
Provedor de dados: Phyton: Revista Internacional de Botánica Experimental
Autores: Pérez-Amador,MC; Muñoz,V; Noyola,A; García-Jiménez,F.
Two Asteraceae species, Clibadium surinamense L. and Montanoa grandiflora D.C., were analyzed to determine the composition of the essential oil and to search for phototoxic compounds. Three parts of the plants were studied, inflorescence, stems and leaves. Intra and interspecific differences were found in the essential oil composition, which was determined by gas chromatography. In the chromatographic profiles, run for phototoxic compounds, spots for these products were present in the Clibadium surinamense extracts, but were absent in Montanoa grandiflora. From the hexane extract of Clibadium surinamense inflorescence 2 new polyacetylene esters were isolated, ichtyothereol capric ester and its derivate tetrahydroichthyothereol-7'- en-miristic ester.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asteraceae; Phototoxic compounds; Essential oils.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572006000100015

Performance and carcass yield of broilers supplemented with plant extract during the finisher phase
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Carlos,TCF; Barbosa,LCGS; Polycarpo,GV; Afonso,ER; Utimi,NBP; Bortolato,C; Araújo,CSS; Araújo,LF.
In this study, 600 one-day-old male Cobb 500 broilers were distributed according a completely randomized experimental design into the different dietary treatments. Broilers were fed the following dietary treatments: positive control diet (PC), containing 54 ppm zinc bacitracin; negative control diet (NC), with no inclusion of performance enhancers and 3% reduction in metabolizable energy, crude protein, and amino acid levels; PC up to 33 days and then NC, with the dietary addition of 75, 150, or 225 ppm plant extracts, until day 42 days of age. Broiler performance and carcass yield were evaluated. Data were analyzed using the Statistical Analysis System package (SAS Institute Inc., 2008), and submitted to polynomial regression analysis using the GLM...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsaicin; Carvacrol; Cinnamaldehyde; Poultry nutrition; Essential oils.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400016

Phytogenic additives and glutamine plus glutamic acid in broiler diets
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Pelícia,VC; Stradiotti,AC; Araujo,PC de; Maruno,MK; Carvalho,FB de; Pezzato,AC; Sartori,JR.
The objective of this study was to evaluate the effect of the dietary supplementation of phytogenic additives (PAs) and glutamine plus glutamic acid (Gln/Glu), associated or not, in replacement of antibiotic growth promoters and anticoccidials (AGP/AC) on the performance and carcass yield of broilers. Five hundred male Cobb broilers were housed in an experimental house and randomly distributed into five treatments, with four replicates of 25 birds each. Treatments consisted of a control diet (CD); CD+AGP/AC; CD+Gln/Glu; CD+PAs; CD+Gln/ Glu+PAs. Diets were formulated only with plant feedstuffs, i.e., they did not contain any animal byproducts. Performance data were collected for the accumulated periods of 1-7, 1-21, and 1-42 days of age. Carcass yield and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative additives; Plant extracts; Essential oils.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400002

Use of Lippia rotundifolia and Cymbopogon flexuosus essential oils, individually or in combination, in broiler diets
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Azevedo,Izabela Lorena; Martins,Ernane Ronie; Almeida,Anna Christina de; Nogueira,Wedson Carlos Lima; Faria Filho,Daniel Emygdio de; Santos,Vanessa Kelly Ferreira do Rosário; Lara,Leonardo José Camargos.
ABSTRACT This study investigated the effects of Cymbopogon flexuosus and Lippia rotundifolia microencapsulated essential oils on broiler performance and carcass yield. One hundred and fifty mixed-sex Cobb broiler chicks were used, from one day up to 42 days of age, in a completely randomized design, with five treatments and three replicates of ten birds each. The treatments were: negative control (basal diet), positive control (diet with enramycin and salinomycin), and three diets with microencapsulated essential oils from lemongrass, L. rotundifolia, and combination with 50% of both. The performance and carcass yield were not affected by the treatments. The intestine absolute weight was lower in the combination treatment compared with the negative control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobials; Essential oils; Lemongrass; Performance.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100013

Eucalyptus oil to mitigate heat stress in broilers
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Petrolli,Tiago Goulart; Sutille,Maria Aparecida; Petrolli,Osmar José; Stefani,Lenita Moura; Simionatto,Anderson Tiecher; Tavernari,Fernando de Castro; Zotti,Claiton André; Girardini,Lilian Kolling.
ABSTRACT The objective of this study was to evaluate performance, hematological parameters, leukocyte counts, and respiratory microbiota of broilers under heat stress receiving eucalyptus oil supplementation. Cobb broilers (n = 1200) were randomly distributed on the first day of life in a factorial arrangement with additional treatment (2 × 2 + 1) with two periods of oil administration via drinking water (daily, from 18 to 35 days of life) and two periods of oil administration via spray (daily, from 18 to 35 days of age) plus a control treatment, consisting of twelve replications, with 20 animals each. The birds were kept in a controlled environment with constant temperature at 32 °C to induce heat stress by infrared heaters. Eucalyptus oil was supplied by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additives; Environment; Essential oils; Poultry.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100200

Blood parameters and hepatic histopathology of broilers fed rations supplemented with essential oils
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Santos,Vanessa Kelly Ferreira do Rosário; Nogueira,Wedson Carlos Lima; Santos,Renato de Lima; Oliveira,Neide Judith Faria de; Martins,Ernane Ronie; Azevedo,Izabela Lorena; Carvalho,Tatiane Furtado de; Almeida,Anna Christina de.
ABSTRACT This study aimed to evaluate the hematological profile, hepatic function, and histopathology of mixed-sex broilers fed rations supplemented with microencapsulated essential oils from Cymbopogon flexuosus (lemon grass) and Lippia rotundifolia (chá-de-pedestre). One hundred and fifty Cobb chicks were housed in cages from 1 to 42 days of age in a completely randomized design, with six replicates with five chickens in each of five treatments (150 total chicks): basal diet without antibiotic growth promoter (negative control), diet with enramicina and salinomycin (positive control), diet with lemon grass essential oil, diet with L. rotundifolia essential oil, and diet with a mixture of lemon grass and L. rotundifolia essential oils. Mean corpuscular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Bird; Bird nutrition; Essential oils; Hematology; Liver.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100518

Effect of essential oils of medicinal plants on leaf blotch in Tanzania grass
Provedor de dados: Revista Ciência Agronômica (RCA)
Autores: Santos,Gil Rodrigues dos; Brum,Rúbia Borges Cruz Sarmento; Castro,Henrique Guilhon de; Gonçalves,Clebson Gomes; Fidelis,Rodrigo Ribeiro.
Leaf spots caused by phyto-pathogenic fungi, can reduce the production of forage plants. The essential oils of medicinal plants have antimicrobial potential. The objective here was to evaluate the fungotoxicity in vitro of the essential oils of lemongrass (Cymbopogon citratus (DC.) Stapf (Poaceae)), citronella (Cymbopogon nardus (L.) Rendle (Poaceae)), lemon balm (Lippia alba (Mill.) NE Br ex Britton &amp;amp; P. Wilson (Verbenaceae)) and peppermint (Mentha piperita L. (Lamiaceae)) on the fungus Helminthosporium sp. and the in vivo effect of these oils and of commercial neem oil (Azadirachta indica A. Juss. (Meliaceae)) on leaf blotch in Panicum maximum Jacq. cv. Tanzania-1. The mycelial growth of the fungus was evaluated over five periods (2; 4; 6; 8 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forage plants; Essential oils; Helminthosporium sp.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000300022

In vitro effect of essential oils on Alternaria solani Sorauer
Provedor de dados: Revista de Protección Vegetal
Autores: Duarte,Yanisia; Pino,Oriela; Infante,Danay; Sánchez,Yaima; Travieso,María del Carmen; Martínez,B.
The aim of this work was to determine the in vitro antifungal activity of ten essential oils on Alternaria solani SORAUER. The effect by direct contact and exposure to vapors was evaluated. The bioassays were performed using a completely randomized design and the method of paper discs inoculated with the oils facing phytopathogen discs; the fungal radial growth was evaluated. All the oils, except those from Citrus sinensis (L.) Osbeck (sweet orange), inhibited the mycelial growth until the seventh day. At day 14, a total inhibition was observed in the treatments with the oils from Pimpinella anisum L. (anise), Ocimum basilicum L. (white basil), Ocinum basilicum L. var. genovese (Genovese basil), and Piper auritum Kunth (anise caisimon). No fungicidal...
Tipo: Journal article
Palavras-chave: Essential oils; Antifungal activity; Ocimum basilicum; Piper marginatum; Ruta chalepensis; Pimpinella anisum; Piper auritum; Piper aduncum subsp. Ossanum; Citrus sinensis.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522013000100007

Chemical composition of four essential oils from Eupatorium spp: Biological activities toward Tribolium castaneum (Coleoptera: Tenebrionidae)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Lancelle,Hugo G.; Giordano,Oscar S.; Sosa,Marta E.; Tonn,Carlos E.
Toxic and repellent properties of whole essential oils from four Eupatorium (Asteraceae) species (E. buniifolium Hook. et Arn, E. inulaefolium Kunth, E. arnottii Baker, and E. viscidum Hook. &amp;amp; Arn) were investigated in different concentrations toward Tribolium castaneum Herbst adults. The essential oils were isolated by hydrodistillation techniques from the aerial parts. The analysis was performed by GC-FID and GC-MS methods. Contact toxicity assays showed that all the evaluated essential oils were toxic. Furthermore, in all the cases mortality was dose dependent. The main repellency was observed for the essential oil recovered from E. buniifolium.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tribolium castaneum; Eupatorium; Monoterpenes; Sesquiterpenes; Essential oils; Repellency; Toxicity.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802009000200010

Heterogeneity of linalool chemotypes of Lippia alba (Mill.) N.E.Br., based on clonal half-sib progenies
Provedor de dados: Scientia Agricola
Autores: Bottignon,Marcos Ribeiro; Rufino,Elcio Rodrigo; Marques,Márcia Ortiz Mayo; Colombo,Carlos Augusto; Azevedo Filho,Joaquim Adelino de; Lourenção,André Luiz; Martins,Antônio Lúcio Mello; Siqueira,Walter José.
Lippia alba (Mill.) N.E.Br. is an aromatic and medicinal shrub native to the American continent. Despite its potential as a source of essential oil for the pharmaceutical and cosmetics industries, few selection and genetic improvement studies have been carried out. The aim of this study was to provide genetic information on this species for breeding programs, showing its selection potential, by investigating clonal half-sib progenies. The following characteristics were evaluated per plant: leaf dry mass (LDM), total dry mass (TDM), leaf yield (LY), essential oil yield (EOY) and oil production (OP). Estimates were made for the several genetic parameters including absolute genetic gain at 30% selection intensity, correlations and relative contribution of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic gain; Breeding; Essential oils.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400009

Identification of the major fungitoxic component of cinnamon bark oil
Provedor de dados: Tropical Plant Pathology: fitopatologia brasileira
Autores: Jham,Gulab N.; Dhingra,Onkar D.; Jardim,Carolina M.; Valente,Vânia M. M.
The study was done to identify the most active fungitoxic component of cinnamon bark (Cinnamomum zeylanicum) oil that can be used as a marker for standardization of cinnamon extract or oil based natural preservative of stored seeds. Aspergillus flavus and A. ruber were used as test fungi. The hexane extracted crude oil and the hydro-distilled essential oil from cinnamon bark had complete growth inhibition concentration (CGIC) of 300 and 100 µl/l, respectively. Both oils produced three fractions on preparative thin layer silica-gel chromatography plates. The fraction-2 of either oil was the largest and most active, with CGIC of 200 µl/l, but the fungitoxicity was also retained in the other two fractions. The fraction-1 and 3 of the crude oil reduced growth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Antifungal activity; Fungitoxicity; Active compounds; Cinnamon oil; Seed preservative.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000400011

Sesquiterpenes of Amazonian Piper species*
Provedor de dados: Acta Amazonica
Autores: SANTOS,Alberdan S; ANDRADE,Eloisa H. A; ZOGHBI,Maria das Graças B; LUZ,Arnaldo I. R; MAIA,José G. S.
The essential oils from leaves and thin branches of Piper amapense, Piper ducket and Piper bartlingianum were analysed by GC/MS and all volatile compounds were identified as sesquiterpenes. The main constitutents identified in the oil of P. amapense were trans-caryophyllene (25.0%), caryophyllene oxide (17.0%) and β-selinene (15.0%). The oil of P. duckei was dominated by trans-caryophyllene (23.5%), caryophyllene oxide (18.4%), β-eudesmol (9.4%) and a-eudesmol (9.1%). The major components found in the oil of P. bartlingianum were &lt;x-cadinol (11.2%), p-elemene (10.5%), ą-muurolol (9.4%), (E)-nerolidol (9.0%).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piper amapense; Piper duckei; Piper bartlingianum; Piperaceae; Essential oils; Sesquiterpenes.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671998000200127

Chemical composition of the essential oils from two subspecies of Protium heptaphyllum
Provedor de dados: Acta Amazonica
Autores: Marques,Delcio Dias; Sartori,Rogério Antônio; Lemos,Telma Leda Gomes; Machado,Luciana Lucas; Souza,João Sammy Nery de; Monte,Francisco José Queiroz.
Qualitative and quantitative analyses of the volatile constituents from resin of Protium heptaphyllum (Aubl.) Marchand subsp. ulei (Swat) Daly (PHU), and Protium heptaphyllum (Aubl.) Marchand subsp. heptaphyllum (PHH), Burseraceae were performed using GC-MS and GC-FID. The resins were collected around the city of Cruzeiro do Sul, state of Acre, Brazil. Essential oils from the two subspecies were extracted by hydrodistillation with a yield of 8.6% (PHU) and 11.3% (PHH); the main components were terpinolene (42.31%) and p-cymene (39.93%) for subspecies ulei (PHU) and heptaphyllum (PHH), respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protium heptaphyllum; Essential oils; Burseraceae; Terpinolene; P-cymene.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000100029

ESSENTIAL OIL OF Protium unifoliolatum (BURSERACEAE)
Provedor de dados: Acta Amazonica
Autores: ZOGHBI,Maria das G. B.; CUNHA,Emidio V. L. da; WOLTER FILHO,Wilson.
The major constituents of the leaf essential oil of P. unifoliolatumare trans-caryophyllene (37.45%), limonene (24.23%) and α-humulene (9.94%).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Burseraceae; Protium; Essential oils; Terpenes.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000100015

Volatile chemical composition of essential oil from Bursera graveolens (Kunth) Triana &amp; Planch and their fumigant and repellent activities
Provedor de dados: Acta Scientiarum: Biological Sciences
Autores: Jaramillo-Colorado, Beatriz Eugenia; Suarez-López , Samyr; Marrugo-Santander, Vanessa.
The objectives of this work were the study of the volatile chemical composition of essential oils (EO’s) from Bursera graveolens obtained in the locality of Malagana, municipality of Mahates, Bolívar, Colombia, as well as to evaluate their repellent and fumigant properties. EO’s were extracted by hydro-distillation and characterized by gas chromatography-mass spectrometry (GC-MS). The major compounds found in B. graveolens were limonene (42.2%), pulegone (20.9%), carvone (7.5%), caryophyllene (4.1%), and trans-carveol (3.8%). The repellent activity of EO’s was determined by the area preference method, where the EO of B. graveolens presented repellent activity against the Tribolium castaneum weevil at a concentration of 1 at 2% and 4 hours of exposure (88.1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gas chromatography; Bioactivity; Essential oils; Bursera graveolens; Tribolium castaneum; Terpenes.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46822

Volatile chemical composition and bioactivities from Colombian Kyllinga pumila Michx (Cyperaceae) essential oil
Provedor de dados: Acta Scientiarum: Biological Sciences
Autores: Jaramillo-Colorado, Beatriz Eugenia; Martínez-Cáceres, Eduardo Luis; Duarte-Restrepo, Edisson.
The essential oil from the fresh leaves of Kyllinga pumila (Michx) was obtained by hydrodistillation and characterized by gas chromatography-mass spectrometry (GC-MS). Twenty-eight volatile compounds were identified, major constituents of the oil were Methyl E,E-10,11-epoxyfarnesoate (43.8%), β-elemene (12.5%), Z-caryophyllene (11.3%), germacrene D (7.1%) and E-caryophyllene (5.6%). Repellent and fumigant activities of the oil against Tribolium castaneum Herbst (Coleoptera: Tenebrionidae), were done using the area preference method. Additionally, we studied their antioxidant and phytotoxic effects. Essential oils exhibited a dose-dependent repellent activity, with values 90% at the applied concentration (0.01%), for both two and four hour’s exposure....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Repellent activity; Fumigant; Tribolium castaneum; Phytotoxic; DPPH.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32386

Essential oils from Piper aduncum inflorescences and leaves: chemical composition and antifungal activity against Sclerotinia sclerotiorum
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: VALADARES,ANNA CAROLINA F.; ALVES,CASSIA CRISTINA F.; ALVES,JOSÉ MILTON; DE DEUS,ISABELLA P.B.; DE OLIVEIRA FILHO,JOSEMAR G.; DOS SANTOS,TAINÁ CAROLINE L.; DIAS,HERBERT JÚNIOR; CROTTI,ANTÔNIO EDUARDO M.; MIRANDA,MAYKER L.D.
Abstract Even though essential oils from Piper aduncum (Piperaceae) have different biological activities, little is known about their application to agricultural areas. White mold is a plant disease caused by the phytopathogen Sclerotinia sclerotiorum, which needs to be controlled by alternative measures. This study aimed at evaluating the effect of essential oils from P. aduncum leaves (PL-EO) and inflorescences (PI-EO) on the mycelial growth of S. sclerotiorum. Essential oils from P. aduncum were obtained by hydrodistillation by a Clevenger-type apparatus while their chemical composition was analyzed by GC-MS and GC-FID. Piperitone (23.4 %), myristicin (12.4 %), terpinen-4-ol (12.3 %), β-caryophyllene (7.2 %), α-humulene (6.9 %), germacrene-D (6.9 %) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piper aduncum; Essential oils; Piperitone; Antifungal activity; Sclerotinia sclerotiorum.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602691

Chemical composition and antibacterial activity of essential oils from Citrus aurantifolia leaves and fruit peel against oral pathogenic bacteria
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: LEMES,RAIANE S.; ALVES,CASSIA C.F.; ESTEVAM,ELISÂNGELA B.B.; SANTIAGO,MARIANA B.; MARTINS,CARLOS H.G.; SANTOS,TAINÁ C.L. DOS; CROTTI,ANTÔNIO E.M.; MIRANDA,MAYKER L.D.
ABSTRACT Tooth decay is a major public health problem which affects a large number of people in several countries. Even though more than 700 bacterial species have been detected in the oral cavity, Streptococcus and Lactobacillus stand out as the genera that cause tooth decay and other periodontal diseases. In this study, essential oils from Citrus aurantifolia leaves (CL-EO) and fruit peel (CP-EO) were obtained by hydrodistillation by a Clevenger-type apparatus whereas their chemical composition was analyzed by gas chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Limonene (77.5 %), linalool (20.1 %), citronellal (14.5 %) and citronellol (14.2 %) were the main constituents found in the essential oils from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus aurantifolia; Limonene; Cariogenic bacteria; Essential oils; Oral pathogens.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401285

Lippia alba essential oil promotes survival of silver catfish (Rhamdia quelen) infected with Aeromonassp.
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: SUTILI,FERNANDO J.; CUNHA,MAURO A.; ZIECH,ROSANGELA E.; KREWER,CARINA C.; ZEPPENFELD,CARLA C.; HELDWEIN,CLARISSA G.; GRESSLER,LETICIA T.; HEINZMANN,BERTA M.; VARGAS,AGUEDA C.; BALDISSEROTTO,BERNARDO.
In vitro and in vivo activity of the Lippia alba essential oil (EO) against Aeromonas sp. was evaluated. In the in vitro assay the minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of EO for Aeromonas cells were determined using the microdilution method. Twenty five strains of Aeromonassp. isolated from infected fish obtained from local fish farms were used. MIC and MBC values were 2862 and 5998 µg mL-1 for L. alba EO and 0.5 and 1.2 µg mL-1for gentamicin, respectively. In the in vivo assay silver catfish juveniles (Rhamdia quelen) (7.50 ± 1.85 g and 10.0 ± 1.0 cm) with typical injuries associated to Aeromonas infection were divided into four treatments (in triplicate n=10): untreated fish (negative control), 10 mg L-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibacterial activity; Essential oils; Fish; Gentamicin.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100095

Olfaction in the fruit-eating bats Artibeus lituratus and Carollia perspicillata: an experimental analysis
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: Parolin,Lays C.; Mikich,Sandra B.; Bianconi,Gledson V.
ABSTRACT Studies suggest that frugivorous bats search and select fruit mainly by olfaction so that they can be attracted by smell alone. The aim of this study was to evaluate, in captivity, the behavioural response (number of foraging attempts) of Artibeus lituratus and Carollia perspicillata offered essential oils extracted from ripe fruit of Ficus insipida (Moraceae) and Piper hispidum (Piperaceae) as well as intact fruit wrapped in gauze to attract bats with reduced visual stimuli. Based on previous reports, we hypothesized that A.lituratus would exhibit preference for Ficus fruits/oil while C. perspicillata would prefer Piper fruit/oil. Four arrangements of these attractants were tested in triplicate: P. hispidum fruit vs. F. insipida fruit, P.hispidum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bats; Essential oils; Food preference; Fruits; Smell.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502047

Essential oils from two Eucalyptus from Tunisia and their insecticidal action on Orgyia trigotephras (Lepidotera, Lymantriidae)
Provedor de dados: Biological Research
Autores: Slimane,Badreddine Ben; Ezzine,Olfa; Dhahri,Samir; Jamaa,Mohamed Lahbib Ben.
BACKGROUND: Essential oils extracted from aromatic and medicinal plants have many biological properties and are therefore an alternative to the use of synthetic products. The chemical composition of essential oils from two medicinal plants (Eucalyptus globulus and E. lehmannii) was determined and, their insecticidal effects on the third and fourth larval stages of Orgyia trigotephras were assessed. RESULTS: Larvae were collected from Jebel Abderrahmane (North-East of Tunisia), conserved in groups of 50/box (21 × 10 × 10 cm) at a temperature of 25°C. Larvae were tested for larvicidal activities of essential oils. Each oil was diluted in ethanol (96%) to prepare 3 test solutions (S1 = 0.05%, S2 = 0.10% and S3 = 0.50%). Essential oils were used for contact,...
Tipo: Journal article
Palavras-chave: Eucalyptus; Orgyia trigotephras; Essential oils; Insecticides; Insect control.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100029

Biosystematic and chemosystematic studies in five South American species of Conyza (Asteraceae)
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Urdampilleta,Juan D.; Amat,Aníbal G.; Bidau,Claudio J.; Kolb Koslobsky,Nicolás.
The composition of the essentials oils of five species of Conyza Less from Argentina was determined by Gas Chromatography-Mass Spectrometer. This composition is associated to morphological and cytogenetic characters. The monoterpenes constitute more than 60% of the essential oils in C. blakei, C glandulitecta, C. sumatrensis var. sumatrensis and C. sumatrensis var. floribunda, in which limonene is the predominant compound. In C. bonariensis and C. primulaefolia the monoterpene content constitute less than the 40%. C. bonariensis presents only 13% limonene, while in C. primulaefolia it is absent. The similarity analysis of monoterpenes showed a relationship between the morphological and cytogenetic analysis, and the monoterpene content character seems to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Chemosystematics; Morphology; Cytogenetics; Conyza; Asteraceae.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100011

Anti-Candida activity and chemical composition of Cinnamomum zeylanicum blume essential oil
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Castro,Ricardo Dias de; Lima,Edeltrudes Oliveira.
The purpose of this study was to identify the anti-Candida activity and chemical composition of the essential oil (EO) of Cinnamomum zeylanicum (cinnamon). For this, tests were conducted to determine the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC) and the action of C. zeylanicum EO on fungal cell wall of Candida albicans, C. tropicalis and C. krusei strains. The composition of the was analysed by gas chromatography with mass spectrometry. Significant antifungal activity of the EO was observed on the strains tested, with 87.5% and 62.5% of them sensitive, respectively at a MIC of 312.5 µg/mL and MFC of 2500 µg/mL. In the presence of sorbitol, the MIC was 625 µg/mL against all the strains, showing a possible action of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Candidiasis; Cinnamomum zeylanicum; Essential oils.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500005

Evaluation of Gamma Irradiation Effect on the Oxidative Stress Factors in Septic Rats Treated With Iranian Plant Essential Oils
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Fatemi,Faezeh; Yazdi,Atefeh Jalali; Ghanooni,Shirin; Zolfaghari,Mohammad Reza.
ABSTRACT Cuminum cyminum L. (CM), Zataria multiflora Boiss. (ZM) and Mentha piperita L. (MP) are traditional medicinal plants with various pharmacological properties. This study was designed to assess the role of gamma irradiation -a modern decontamination method- in hepatoprotective effects of their essential oil (E.Os) in septic rats induced by experimental cecal ligation and puncture (CLP) model. The rats were divided into 20 groups; sham-operated (SOP); CLP; CLP + CM, ZM and MP (E.Os) (100 &amp; 200 mg/kg b.w) and CLP + gamma irradiated (10 and 25 kGy) E.Os (100 &amp; 200 mg/kg b.w) as treatment groups. All E.Os were injected i.p immediately after sepsis induction. 24 hour after CLP, the rats were sacrificed and the liver tissue was examined...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Oxidative stress; Antioxidant; CLP; Gamma irradiation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100312

Essential oils of camphor tree (cinnamomum camphora nees &amp;amp; eberm) cultivated in Southern Brazil
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Frizzo,Caren D.; Santos,Ana C.; Paroul,Natalia; Serafini,Luciana A.; Dellacassa,Eduardo; Lorenzo,Daniel; Moyna,Patrick.
The essential oils of two varieties of Camphor tree (Cinnamomum camphora Nees &amp;amp; Eberm, Lauraceae), known as Hon-Sho and Ho-Sho cultivated in experimental stands in Southern Brazil were studied. The essential oils were obtained from the leaves and twigs of young plants by hydrodistillation. The identification of the components was performed using GC, GC/MS and retention indexes on methyl silicone and carbowax phases. The main components identified were linalool in the Ho-Sho and camphor in the Hon-Sho.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cinnamomum camphora; Leaves; Essential oils; GC/MS; Linalool; Camphor.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000300011

Hepatoprotective effects of Iranian Hypericum scabrum essential oils against oxidative stress induced by acetaminophen in rats
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Dadkhah,Abolfazl; Fatemi,Faezeh; Farsani,Mohsen Eslami; Roshanaei,Kambiz; Alipour,Mahdi; Aligolzadeh,Hadi.
This studied examined the protective role of Hypericum scabrum oils (100 and 200 mg/kg b.w, i.p) on acetaminophen-induced liver damages in the rat. The hepatic oxidative/antioxidant parameters such as lipid peroxidation (LP), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT) and ferric reducing ability of plasma (FRAP) were measured 2, 4, 8, 16 and 24h after the treatments confirmed by histopathological consideration. The results indicated that increased levels of hepatic LP and FRAP and SOD activity were reversed in the rats treated with oils. In addition, the depleted GSH were compensated with the oil treatments. The protective effect of the oils was further confirmed by the histophatological examination carried out on liver biopsies. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypericum scabrum; Essential oils; Acetaminophen; Rat; Oxidative stress; Liver.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000300005

Antifungal treatment with carvacrol and eugenol of oral candidiasis in immunosuppressed rats
Provedor de dados: Brazilian Journal of Infectious Diseases
Autores: Chami,N.; Chami,F.; Bennis,S.; Trouillas,J.; Remmal,A.
Carvacrol and eugenol, the main (phenolic) components of essential oils of some aromatic plants, were evaluated for their therapeutic efficacy in the treatment of experimental oral candidiasis induced by Candida albicans in immunosuppressed rats. This anticandidal activity was analyzed by microbiological and histopathological techniques, and it was compared with that of nystatin, which was used as a positive control. Microbiologically, carvacrol and eugenol significantly (p&lt;0.05) reduced the number of colony forming units (CFU) sampled from the oral cavity of rats treated for eight consecutive days, compared to untreated control rats. Treatment with nystatin gave similar results. Histologically, the untreated control animals showed numerous hyphae on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carvacrol; Eugenol; Experimental oral candidiasis; Antifungal activity; Essential oils.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000300005

Study of the effects of ß-myrcene on rat fertility and general reproductive performance
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Paumgartten,F.J.R.; De-Carvalho,R.R.; Souza,C.A.M.; Madi,K.; Chahoud,I.
ß-Myrcene (MYR) is a monoterpene found in the oils of a variety of aromatic plants including lemongrass, verbena, hop, bay, and others. MYR and essential oils containing this terpenoid compound are used in cosmetics, household products, and as flavoring food additives. This study was undertaken to investigate the effects of MYR on fertility and general reproductive performance in the rat. MYR (0, 100, 300 and 500 mg/kg) in peanut oil was given by gavage to male Wistar rats (15 per dose group) for 91 days prior to mating and during the mating period, as well as to females (45 per dose group) continuously for 21 days before mating, during mating and pregnancy, and throughout the period of lactation up to postnatal day 21. On day 21 of pregnancy one-third of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SS-myrcene; Monoterpenes; Essential oils; Reproductive toxicity; Fertility; Embryofetal toxicity; Postnatal development.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000700012

Inhibitory effect of essential oils against Lactobacillus rhamnosus and starter culture in fermented milk during its shelf-life period
Provedor de dados: Brazilian Journal of Microbiology
Autores: Moritz,Cristiane Mengue Feniman; Rall,Vera Lúcia Mores; Saeki,Margarida Júri; Fernandes Júnior,Ary.
The use of essential oils in foods has attracted great interest, due to their antagonistic action against pathogenic microorganisms. However, this action is undesirable for probiotic foods, as products containing Lactobacillus rhamnosus. The aim of the present study was to measure the sensitivity profile of L. rhamnosus and a yogurt starter culture in fermented milk, upon addition of increasing concentrations of cinnamon, clove and mint essential oils. Essential oils were prepared by steam distillation, and chemically characterised by gas chromatography-mass spectrometry (GC-MS) and determination of density. Survival curves were obtained from counts of L. rhamnosus and the starter culture (alone and in combination), upon addition of 0.04% essential oils....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactobacillus rhamnosus; Starter culture; Essential oils; Fermented milk.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300042

Inhibitory effect of essential oils against Trichosporon ovoides causing Piedra Hair Infection
Provedor de dados: Brazilian Journal of Microbiology
Autores: Saxena,Seema; Uniyal,Veena; Bhatt,R.P.
Piedra, is an asymptomatic fungal infection of the hair shaft, resulting in the formation of nodules of different hardness on the infected hair. The infection also known as Trichomycosis nodularis is a superficial fungal infection arising from the pathogen being restricted to the stratum corneum with little or no tissue reaction. The nodules are a concretion of hyphae and fruiting bodies of the fungus. Two varieties of Piedra may be seen, Black Piedra and White Piedra. The fungus Trichosporon ovoides is involved in the occurrence of both types of Piedras. The purpose of this study was to examine the effectiveness of selected essential oils for the control of growth of the fungus and to determine whether the antifungal effect was due to the major compounds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Piedra hair infection; Antifungal activity.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400016

Chemicals and lemon essential oil effect on Alicyclobacillus acidoterrestris viability
Provedor de dados: Brazilian Journal of Microbiology
Autores: Maldonado,Maria Cristina; Aban,Marina Paola; Navarro,Antonio Roberto.
Alicyclobacillus acidoterrestris is considered to be one of the important target microorganisms in the quality control of acidic canned foods. There is an urgent need to develop a suitable method for inhibiting or controlling the germination and outgrowth of A.acidoterrestris in acidic drinks. The aim of this work was to evaluate the chemicals used in the lemon industry (sodium benzoate, potassium sorbate), and lemon essential oil as a natural compound, against a strain of A.acidoterrestris in MEB medium and in lemon juice concentrate. The results pointed out that sodium benzoate (500-1000-2000 ppm) and lemon essential oil (0.08- 0.12- 0.16%) completely inhibited the germination of A. acidoterrestris spores in MEB medium and LJC for 11 days. Potassium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sodium benzoate; Potassium sorbate; Essential oils; Alicyclobacillus acidoterrestris.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400015

Antimicrobial activity of essential oils against Vancomycin-Resistant enterococci (VRE) and Escherichia coli O157:H7 in feta soft cheese and minced beef meat
Provedor de dados: Brazilian Journal of Microbiology
Autores: Selim,Samy.
Eleven essential oils (EOs) were evaluated for their antibacterial properties, against Vancomycin-Resistant Enterococci (VRE) and E. coli O157:H7. EOs were introduced into Brain Heart Infusion agar (BHI) (15ml) at a concentration of 0.25 to 2% (vol/vol) to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for each pathogen evaluated. Results showed that the most active essential oils against bacteria tested were thyme oil, with MIC90 and MBC90 for the VRA strains of 0.25% and 0.5%, respectively. Eucalyptus, juniper and clove oils were the least potent agent, with MIC90 and MBC90 of 2%. Furthermore, the inhibitory effect of these EO were evaluated against VRE and E. coli O157:H7, experimentally inoculated (10³...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; VRE; E. coli O157:H7; Feta soft cheese; Minced beef meat.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100023

Antimicrobial activity and potential use of monoterpenes as tropical fruits preservatives
Provedor de dados: Brazilian Journal of Microbiology
Autores: Garcia,Roxana; Alves,Eliomara S.S.; Santos,Mirella P.; Aquije,Glória M.F. Viégas; Fernandes,A. Alberto R.; Santos,Reginaldo B. dos; Ventura,Jose A.; Fernandes,Patricia M.B.
Banana, papaya and pineapple are the most consumed tropical fruits in the world, being Brazil one of the main producers. Fungi Colletotrichum musae, Colletotrichum gloeosporioides and Fusarium subglutinans f.sp. ananas cause severe post harvest diseases and losses in fruits quality. The aim of this work was to evaluate the effectiveness of five monoterpenes to inhibit the mycelial growth and conidia germination of these three phytopathogens. The monoterpenes citral, citronellal, L-carvone, isopullegol and a-pinene were diluted in ethanol to final concentrations from 0.2 to 1%. All monoterpenes were found to inhibit the growth of the three studies fungi in a dose-dependent manner. Citral was the most effective of the oils tested and showed potent fungicidal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Essential oils; Banana; Papaya; Pineapple; Plant diseases.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100032

Antimicrobial activities of six essential oils commonly used as condiments in Brazil against Clostridium perfringens
Provedor de dados: Brazilian Journal of Microbiology
Autores: Radaelli,Marcela; Silva,Bárbara Parraga da; Weidlich,Luciana; Hoehne,Lucélia; Flach,Adriana; Costa,Luiz Antonio Mendonça Alves da; Ethur,Eduardo Miranda.
Abstract Despite recent advances in food production technology, food-borne diseases (FBD) remain a challenging public health concern. In several countries, including Brazil, Clostridium perfringens is among the five main causative agents of food-borne diseases. The present study determines antimicrobial activities of essential oils of six condiments commonly used in Brazil, viz., Ocimum basilicum L. (basil), Rosmarinus officinalis L. (rosemary), Origanum majorana L. (marjoram), Mentha × piperita L. var. Piperita (peppermint), Thymus vulgaris L. (thyme) and Pimpinella anisum L. (anise) against C. perfringens strain A. Chemical compositions of the oils were determined by GC–MS (gas chromatography–mass spectrometry). The identities of the isolated compounds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food-borne disease; Antimicrobial activity; Clostridium perfringens; Spices; Essential oils.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200424

Fumigant Toxicity of Crushed Bulbs of Two Allium Species to Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae)
Provedor de dados: Chilean Journal of Agricultural Research
Autores: Ofuya,T.I; Olotuah,O.F; Ogunsola,O.J.
Fumigant toxicity of crushed fresh bulbs of Allium sativum L. and A. cepa L. to the Callosobruchus maculatus (Fabricius), a major pest of stored cowpea (Vigna unguiculata (L.) Walp.) seeds was assessed under laboratory conditions in Akure, Nigeria. In the tests, 20 g of infested cowpea seeds were suspended in a piece of muslin cloth, over an amount of crushed bulb in a container with a tightly fitted lid. Adult emergence was completely prevented from freshly laid eggs of C. maculatus on cowpea seeds that was fumigated with 6.0 g or more of crushed bulbs of A. sativum. Such fumigated seeds were not holed at all. Other amounts of A. sativum tested (1.0, 2.0, 3.0, 4.0 and 5.0 g) significantly reduced C. maculatus adult emergence from fumigated eggs and seed...
Tipo: Journal article
Palavras-chave: Infestation; Seed holing; Pesticide; Volatiles; Essential oils.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300019

Improving meat quality through natural antioxidants
Provedor de dados: Chilean Journal of Agricultural Research
Autores: Velasco,Valeria; Williams,Pamela.
Nowadays, consumers are demanding more natural foods, obliging the industry to include natural antioxidants in foods. Natural antioxidants have been used instead of synthetic antioxidants to retard lipid oxidation in foods to improve their quality and nutritional value. This review discusses some aspects of recent research on antioxidant activity of plant extracts and natural compounds to improve meat quality. Many herbs, spices, and their extracts have been reported as having high antioxidant capacity, such as some plants of the Lamiaceae family, e.g., oregano (Origanum vulgare L.), rosemary (Rosmarinus officinalis L.), and sage (Salvia officinalis L.). The antioxidant activity of these plants is attributed to their phenolic compound content, which...
Tipo: Journal article
Palavras-chave: Antioxidant activity; Essential oils; Phenolic compounds; Meat quality.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200017

Insecticidal Effect of Fruit Extracts from Xylopia aethiopica and Dennettia tripetala (Annonaceae) against Sitophilus oryzae (Coleoptera: Curculionidae)
Provedor de dados: Chilean Journal of Agricultural Research
Autores: Ukeh,Donald A; Oku,Ene E; Udo,Idorenyin A; Nta,Abo I; Ukeh,Jude A.
The insecticidal and repellent activities of fruit extracts of Xylopia aethiopica (Dunal) A. Rich. and Dennettia tripetala (Baker f.) G.E. Schatz belonging to the family Annonaceae was studied against Sitophilus oryzae (L.), an economic, primary post-harvest pest of rice, and other cereal products. Infested rice grains (100 g) treated with 1, 2, 3, 4, and 5% (w/w) powders of both plants were evaluated for toxicity against S. oryzae every 24 h for 3 d, and during Fi progeny emergence. The essential oils of both plants were also applied at 0.5, 1, 1.5 and 2 mg cm-2 filter paper in Petri dishes for toxicity bioassays at 24 h exposure. Repellence bioassay with 10 &amp;#956;L solution of essential oils on filter paper was performed in a Y-Tube airflow...
Tipo: Journal article
Palavras-chave: Essential oils; Powders; Repellence; Toxicity; Y-Tube olfactometer.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200005

Antimicrobial wound dressing films containing essential oils and oleoresins of pepper encapsulated in sodium alginate films
Provedor de dados: Ciência Rural
Autores: Rosa,Jessica Miranda; Bonato,Letícia Bicudo; Mancuso,Carolina Bragine; Martinelli,Laira; Okura,Mônica Hitomi; Malpass,Geoffroy Roger Pointer; Granato,Ana Claudia.
ABSTRACT: Medicated wound dressings are important barriers to avoid contamination and, when they contain antimicrobial additives, can be used as treatment for infected wounds. There are several types of polysaccharide materials that serve as matrices for medicated wound dressings, among them, sodium alginate. For the preparation of the films studied in this paper, sodium alginate was employed in combination with essential oils/oleoresins (EO/OL) of six peppers that are commonly used in cooking. The EO/OL were incorporated at three different concentrations (low, intermediate and high). Most of the films prepared had better dispersion of the EO/OL at the intermediate concentration. All films studied in this research were dissolved in water at different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicated wound dressings; Alginate-based films; Essential oils; Oleoresins; Antibacterial activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300453

Chemical composition and antimicrobial activity of essential oils from selected herbs cultivated in the South of Brazil against food spoilage and foodborne pathogens
Provedor de dados: Ciência Rural
Autores: Silveira,Sheila Mello da; Cunha Júnior,Anildo; Scheuermann,Gerson Neudí; Secchi,Fábio Luiz; Vieira,Cleide Rosana Werneck.
The chemical composition of 10 selected plant essential oils obtained by steam distillation was determined by GC and GC/MS. The antimicrobial activity of the essential oils was screened against 12 important food-related bacterial strains by agar disc-diffusion assay. MIC and MBC were determined for the essential oils that presented the highest activity in the agar disc-diffusion test. The most active essential oils against the tested bacteria were, in descending order, lemongrass (Cymbopogon flexuosus), basil (Ocimum basilicum), oregano (Origanum vulgare), cinnamon leaf (Cinnamomum zeylanicum), and laurel (Laurus nobilis). Except for S. Typhimurium, the tested bateria were inhibited at MIC values lower or equal to 0.62mg mL-1 by lemongrass (Cymbopogon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Chemical composition; Phytotherapic agents; Antibacterial activity; Food pathogens.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000700026

Antimicrobial activity of essential oils from Lippia alba, Lippia sidoides, Cymbopogon citrates, Plectranthus amboinicus, and Cinnamomum zeylanicum against Mycobacterium tuberculosis
Provedor de dados: Ciência Rural
Autores: Mota,Aquiles Paulino Peres; Dantas,João Carlos Pinheiro; Frota,Cristiane Cunha.
ABSTRACT: The rise in cases of antibiotic-resistant Mycobacterium tuberculosis has become a major obstacle to the effective control of tuberculosis (TB) worldwide. Essential oils (EO) are complex mixtures that may contain between 20 and 60 components, with two or three major compounds at relatively high concentrations (20-70%) that are responsible for their pharmacological properties. The objective of this study was to assess the antimicrobial activity of the EOs, bushy lippia (Lippia alba), rosemary pepper (Lippia sidoides), lemon grass (Cymbopogon citratus), Mexican mint or Indian borage (Plectranthus amboinicus), and true cinnamon (Cinnamomum zeylanicum), against Mycobacterium tuberculosis H37Rv. Chemical characterization of the EOs was performed by gas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anti-bacterial agent; Essential oils; Mycobacterium tuberculosis; Lippia alba; Lippia sidoides; Cymbopogon citrates; Plectranthus amboinicus; Cinnamomum zeylanicum.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600453

Essential oils in the control of dry bubble disease in white button mushroom
Provedor de dados: Ciência Rural
Autores: Santos,Tamara Leite dos; Belan,Leônidas Leoni; Zied,Diego Cunha; Dias,Eustáquio Souza; Alves,Eduardo.
ABSTRACT: Lecanicillium fungicola, which causes Dry bubble disease, induces infections and inflicts major losses in champignon production. The control can be managed through measures of hygiene and use of fungicides; however, in Brazil there are no registered products. This study aimed to estimate the influence of various essential oils extracted from Melissa officinalis, Thymus vulgaris, Origanum vulgare, Eucalyptus globulus, Cinnamomum zeylanicum and Syzygium aromaticum on the in vitro development and their uses. Therefore, analysis was performed of the L. fungicola isolates in vitro and the best oils were tested in vivo. Besides, the Agaricus bisporus - L. fungicola interaction was confirmed by scanning electron microscopy (SEM). Cinnamon and clove oils...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dry bubble disease; Lecanicillium fungicola; Essential oils; SEM; Alternative control.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500155