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| Registros recuperados: 58 | |
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| 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<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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 58 | |
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