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Registros recuperados: 29 | |
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Souza,Evandro Leite de; Lima,Edeltrudes de Oliveira; Freire,Kristerson Reinaldo de Luna; Sousa,Cristina Paiva de. |
The aim of this study was to determine the sensitivity profile of mould strains isolated from foods to some essential oils and phytochemicals. The assayed mould strains were: Fusarium spp., Rhizopus spp., Aspergillus flavus, A. niger and Penicillium spp. According to results, Lippia alba N.E. Brown, Peumus boldus Molina, Lippia microphylla Phil., Citrus limon Risso and Cymbopogon citratus Stapf. essential oil and the phytochemicals citral, eugenol and mircene showed prominent antimould activity. Among the products that evidenced antimould activity, citral and eugenol showed the lowest minimum inhibitory concentrations, which was 1% and 4%, respectively, for the most of the tested mould strains. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant products; Antimould activity; Sensitivity profile. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200011 |
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Gayoso,Carla Wanderley; Lima,Edeltrudes de Oliveira; Souza,Evandro Leite de; Cechinel Filho,Valdir; Trajano,Vinícius Nogueira; Pereira,Fillipe de Oliveira; Lima,Igara Oliveira. |
This study aimed to analyze the effectiveness of maleimides as inhibitors on the growth of fungal strains isolated from onychomycosis by the solid medium diffusion procedure. The results showed a promising antifungical activity of the assayed maleimides with formation of fungal growth inhibition halos oscillating between diameter 10 and 23mm. MIC was 100µg/mL for 3,4-dichloro-N-phenyl-methyl-maleimide and 3,4-dichloro-N-phenyl-propil-maleimide and 200µg/mL for 3,4-dichloro-N-phenyl-maleimide, 3,4-dichloro-N-phenyl-ethyl-maleimide and 3,4-dichloro-N-phenyl-buthyl-maleimide. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Onychomycosis; Fungi; Maleimides; Antifungical activity. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500016 |
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Oliveira,Jana Luíza Toscano Mendes de; Diniz,Margareth de Fátima Melo; Lima,Edeltrudes de Oliveira; Souza,Evandro Leite de; Trajano,Vinícius Nogueira; Santos,Bernadete Helena Cavalcante. |
This study aimed to evaluate the antibacterial activity of Origanum vulgare L. and O. majorana L. essential oils on Staphylococcus aureus, S. coagulase negative, Enterobacter spp., Proteus spp., Acinetobacter spp., Klebsiella spp. isolated from the patients with conjunctivitis. The results showed a prominent inhibitory effect of both the essential oils on all the bacterial strains, noted by the large bacterial growth inhibition zones (15-32mm). The Minimum Inhibitory Concentrations (MIC) values were between 5-20µL/mL and 2.5-10 µL/mL for O. vulgare and O. majorana essential oil, respectively. The MIC were able to cause significant (P<0.05) inhibitory effect on the cell viability of Klebsiella spp., Proteus spp. and S. aureus providing a total... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Origanum vulgare L.; Origanum marjorana L.; Essential oil; Antibacterial activity; Conjunctivitis. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100006 |
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Moreira,Ana Carolina Pessoa; Lima,Edeltrudes de Oliveira; Wanderley,Paulo Alves; Carmo,Egberto Santos; Souza,Evandro Leite de. |
This study aimed to identify the constituents of the essential oil from Hyptis suaveolens (L.) leaves using a Gas Chromatograph -Mass Spectrometer and assess its inhibitory effect on some potentially pathogenic Aspergilli (A. flavus, A. parasiticus, A. ochraceus, A. fumigatus and A. niger). Eucaliptol (47.64 %) was the most abundant component in the oil, followed for gama-ellemene (8.15 %), beta-pynene (6.55 %), (+)3-carene (5.16 %), trans-beta-cariophyllene (4.69 %) and germacrene (4.86 %). The essential oil revealed an interesting anti-Aspergillus property characterized by a Minimum Inhibitory Concentration and Minimum Fungicidal Concentration of 40 and 80 µL/mL, respectively. The oil at 80 and 40 µL/mL strongly inhibited the mycelial growth of A.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyptis suaveolens L. (Poit); Essential oil; Anti-Aspergillus effect. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100006 |
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Tavares,Adassa Gama; Monte,Daniel Farias Marinho do; Albuquerque,Allan dos Reis; Sampaio,Fábio Correia; Magnani,Marciane; Siqueira Júnior,José Pinto de; Souza,Evandro Leite de. |
Enterotoxigenic Staphylococcus aureus strains that were isolated from foods were investigated for their ability to develop direct-tolerance and cross-tolerance to sodium chloride (NaCl), potassium chloride (KCl), lactic acid (LA) and acetic acid (AA) after habituation in sublethal amounts (1/2 of the minimum inhibitory concentration - 1/2 MIC and 1/4 of the minimum inhibitory concentration - 1/4 MIC) of Origanum vulgare L. essential oil (OVEO). The habituation of S. aureus to 1/2 MIC and 1/4 MIC of OVEO did not induce direct-tolerance or cross-tolerance in the tested strains, as assessed by modulation of MIC values. Otherwise, exposing the strains to OVEO at sublethal concentrations maintained or increased the sensitivity of the cells to the tested... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus; Adaptation; Essential oil; Oregano. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300835 |
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Moreira,Ana Carolina Pessoa; Lima,Edeltrudes de Oliveira; Souza,Evandro Leite de; Van Dingenen,Monique Araújo; Trajano,Vinícius Nogueira. |
Dematiaceous moulds are pathogen microorganisms able to act as etiological agents of mycoses with different degrees of severity. This study evaluated the effectiveness of Cinnamomum zeylanicum Blume essential oil and beta-pinene in inhibiting the growth of various strains of dematiaceous moulds (Alternaria brassicola, Cladosporium herbarium, C. resinae, C. cladosporioides, Chaetomum globosum, Curvularia sp., Fonsecaea compacta, Piedraia hortae). Antimicrobial assays were led by determining the Minimum Inhibitory Concentration-MIC using the solid medium diffusion procedure and observing the interference of the MIC values on the mould radial mycelial growth along 14 days. MIC values found to C. zeylanicum essential oil oscillated between 63 and 125 µL/mL.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dematiaceous moulds; Cinnamomum zeylanicum Blume; Beta-pinene; Antimould activity. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100008 |
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Souza,Nadábia Almeida B; Lima,Edeltrudes de Oliveira; Guedes,Diego Nunes; Pereira,Fillipe de Oliveira; Souza,Evandro Leite de; Sousa,Frederico Barbosa de. |
This study aimed to assess the efficacy of O. vulgare L. and O. majorana L. essential oil in inhibiting the growth and survival of potentially pathogenic fungal strains and also sought to evaluate the possible mechanisms involved in the establishment of the antifungal property of the tested essential oils through assays of osmotic stability and morphogenesis. Test strains included in this study were Candida albicans ATCC 7645, C. tropicalis LM-14, C. krusei LM-09, Cryptococcus neoformans FGF-5, Aspergillus flavus LM-02, A. fumigatus IPP-21, T. rubrum ATCC 28184, T. mentagrophytes LM-64, Microsporum gypseum ATCC 184, M. canis LM-36 and Cladosporium herbarium ATCC 26362. O. vulgare essential oil presented a MIC value of 80 µL/mL, while for O. majorana this... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Pathogen fungi; Origanum sp/antifungal property. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000300013 |
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Jerônimo,Heloísa Maria Ângelo; Queiroga,Rita de Cássia Ramos do Egypto; Costa,Ana Caroliny Vieira da; Barbosa,Isabella de Medeiros; Conceição,Maria Lúcia da; Souza,Evandro Leite de. |
This study assessed the effect of different growth media [BHI broth, BHI broth plus glucose (10 g/100 mL) and BHI broth plus NaCl (5 g/100 mL)] and incubation temperatures (28 or 37 ºC) on the adherence, detachment and biofilm formation on polypropylene and stainless steel surfaces (2 x 2 cm coupons) for a prolonged period (24-72 h) by some strains of Staphylococcus aureus (S3, S28 and S54) from food processing plants. The efficacy of the sanitizers sodium hypochlorite (250 mg/mL) and peracetic acid (30 mg/mL) in reducing the number of viable bacterial cells in a preformed biofilm was also evaluated. S. aureus strains adhered in highest numbers in BHI broth, regardless of the type of surface or incubation temperature. Cell detachment from surfaces revealed... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus/food processing; Biofilm; Surfaces; Sanitizers/efficacy. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000400018 |
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Trajano,Vinicius Nogueira; Lima,Edeltrudes de Oliverira; Souza,Evandro Leite de; Travassos,Antônio Eustáquio Resende. |
As especiarias são conhecidas por exercerem uma estabilidade frente à ação de microrganismos, estando inseridas no grupo dos alimentos estáveis. Esta propriedade conservante das especiarias está relacionada com a presença de compostos antibacterianos na sua composição. Tais compostos podem ser usados no combate a bactérias deteriorantes de alimentos, por esse motivo, este trabalho visa à investigação da propriedade antimicrobiana dos óleos essenciais de Cinnamomum zeylanicum Blume, Coriandrum sativum L., Cuminum cyminum L., Mentha. piperita L., Ocimum basilicum L., Origanum majorana L., Pimpinella anisum L., Piper nigrum L., Rosmarinus officinalis L. e Zingiber officinalis Rosc. frente a bactérias contaminantes de alimentos. Para esse estudo, foram... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Especiarias; Óleos essenciais; Propriedade antimicrobiana. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612009000300014 |
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Registros recuperados: 29 | |
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