|
|
|
| Registros recuperados: 26 | |
|
| |
|
| |
|
|
| Silva,Hugo Napoleão Pereira da; Carvalho,Brenna Celina Ferreira de; Maia,Janna Laely dos Santos; Becker,Alexssandro Geferson; Baldisserotto,Bernardo; Heinzmann,Berta Maria; Mourão,Rosa Helena Veras; Silva,Lenise Vargas Flores da. |
| ABSTRACT: The aim of this study was to investigate the anesthetic effect of the essential oils (EOs) of Lippia alba (citral and linalool chemotypes, EOLA-C and EOLA-L respectively) and Lippia origanoides (chemotype carvacrol, EOLO-Ca) on tambaqui (Colossoma macropomum) juveniles. The tested concentrations of the L. alba and L. origanoides EOs were: 25, 50, 100, and 200 μL/L. Time required to reach the stages of sedation, deep anesthesia, and recovery, as well as ventilatory frequency, were monitored for each EO concentration. The results indicated that all EO concentrations tested induced tambaqui anesthesia and that the ventilatory frequency was altered by the EOs. L. origanoides showed the shortest time to induce sedation and anesthesia, but had long... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anaesthesia; Carvacrol; Citral; Linalool; Ventilatory frequency. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600402 |
| |
|
|
| Trevisan,Daliah Alves Coelho; Silva,Alex Fiori da; Negri,Melyssa; Abreu Filho,Benício Alves de; Machinski Junior,Miguel; Patussi,Eliana Valéria; Campanerut-Sá,Paula Aline Zanetti; Mikcha,Jane Martha Graton. |
| ABSTRACT The present study evaluated the antibacterial and antibiofilm activity of carvacrol against Salmonella Typhimurium. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined and the time-kill curve and scanning electron microscopy (SEM) were performed to evaluate antibacterial activity. Antibiofilm activity was evaluated by quantifying total biomass using crystal violet assay, and metabolic activity was determined using MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The action of carvacrol against preformed biofilm on polypropylene and stainless steel was also evaluated by colony counting and SEM. The MIC and MBC was 312 µg mL-1. Carvacrol at MIC and 2 x MIC eliminated cells... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Biofilm; Antibacterial activity; Salmonella Typhimurium.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000100612 |
| |
|
|
| Rezvanpanah,Shila; Rezaei,Karamatollah; Golmakani,Mohammad-Taghi; Razavi,Seyyed Hadi. |
| Antibacterial properties and chemical characterization of the essential oils from summer savory (Satureja hortensis) extracted by microwave-assisted hydrodistillation (MAHD) were compared with those of the essential oils extracted using the traditional hydrodistillation (HD) method. While MAHD at 660 W required half as much time as HD needed, similar antibacterial efficacies were found from the essential oils obtained by the two extraction methods on two food pathogens (Staphylococcus aureus, a gram positive bacterium, and Escherchia coli, a gram negative bacterium). Also, as it was the case with the essential oils extracted by HD, that of MAHD indicated greater influence on S. aureus than on E. coli. The compositions of the extracted essential oils were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Flavor and fragrance; Medicinal plant/herb; Pathogens; Scanning electron microscopy (SEM); Summer savory. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400031 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| BONIN, M C. B.; PENTEADO, A. L.; QUEIROZ, S. C. do N. de. |
| Resumo: O consumo e cultivo de peixes contaminados com Aeromonas hydrophila e Streptococcus agalactiae podem ocasionar doenças infecciosas tanto em seres humanos como em animais. Para sanar este problema utilizam-se antibióticos, porém seu uso indiscriminado pode causar resistência microbiana, deixar resíduos no alimento e contaminar o meio ambiente. Então, têm sido realizadas buscas por novos antimicrobianos eficazes e que causem menor impacto ao meio ambiente, aos animais e consumidores finais. Neste trabalho foi avaliado o potencial antimicrobiano de carvacrol, carvona, citral, D-limoneno, nerolidol, terpineol, terpinoleno, timol, eucaliptol, eugenol, linalol, L-limoneno, ?-pineno, ?-cariofileno, ?-pineno e ?-terpineno, através de difusão em ágar e pela... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Óleo Essencial; Peixe; Bacteriose; Aquicultura; Piscicultura; Fish diseases; Essential oils; Aquaculture; Carvacrol; Citral; Terpinolene; Thymol; Aeromonas hydrophila; Streptococcus agalactiae. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126359 |
| |
|
|
| SANTOS, S. N.; CASTANHA, R. F.; SILVA, L. J.; MARQUES, M. O. M.; SCRAMIN, S.; MELO, I. S. de. |
| Abstract: The paper reports chemical composition and antimicrobial activity of the essential oil of Hyptis leucocephala Mart ex Benth, Lamiaceae, isolated by hydrodistillation from leaves of plants collected in Casa Nova, semi-arid region of Northeastern Brazil. A total of ten compounds were identified, of which carvacrol as the main component (average 52.82%). This essential oil was also characterized by high level of biogenetic precursor of the phenols: p-cimene (18.13%) and y-terpinene (10.72%), and by E-cariophyllene, were the most abundant sesquiterpene hydrocarbons. Bioassay revealed a significant antibacterial activity of the essential oil against Pseudomonas aeruginosa, Staphylococcus schleiferi, S. aureus, Salmonella typhi, E. coli, Bacillus... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Agente antibacteriano; Agente antioxidante; Bioma caatinga; Carvacrol; Lamiaceae; Antibacterial agent; Antioxidant agent; Óleo essencial; Caatinga; Lamiaceae; Essential oils; Antibacterial plants; Antioxidant activity; Semiarid zones. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1039641 |
| |
|
| |
|
| |
|
| |
|
|
| Valdés Oyervides,FJ; Rivas Morales,C; Benavides Mendoza,A; Núñez González,MA; Verde Star,J; Oranday Cárdenas,A; Robledo Torres,V. |
| Se investigaron cuatro condiciones de manejo para evaluar los efectos de estrés sobre la producción de biomasa, aceites esenciales, timol y carvacrol, y acumulación de prolina en Lippia graveolens H.B.K. bajo condiciones de invernadero. En un diseño bifactorial se evaluaron cuatro condiciones o ambientes (Factor B): Solución nutritiva comercial (B0); Agua (B1); estrés moderado (B2) e intermedio (B3), anidados en condiciones estresantes (Factor A): salinidad (NaCl) y concentración iónica (Cu2+) y (Fe2+). La producción de peso fresco y número de hojas fue reducida por el NaCl y las concentraciones de Cu2+ y Fe2+. Sin embargo, en el promedio de los cuatro ambientes no se observaron diferencias significativas. La cantidad de aceites esenciales fue... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orégano; Sales; Metales; Timol; Carvacrol; Prolina. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000200009 |
| |
|
|
| Ragagnin,Roberto Carlos Grillo; Albuquerque,Cynthia Cavalcanti; Oliveira,Francisco Fábio Mesquita; Santos,Ricardo Gonçalves; Gurgel,Eleneide Pinto; Diniz,Jaécio Carlos; Rocha,Simone Alves Serafim; Viana,Francisco Arnaldo. |
| This study evaluated the effect of salt stress on the growth of Lippia gracilis Schauer, a species native to the caatinga (shrublands) of Brazil and rich in essential oils, as well as on the quality of its oil. We exposed individuals of L. gracilis to NaCl, in the following concentrations, for a period of 40 days: 25 mM; 50 mM; 75 mM; and 100 mM. An additional group of plants was not exposed to NaCl (controls). Data were collected on days 20 and 40. We evaluated relative growth rate; shoot and root dry weight; relative water content; proline concentration in leaves; and chemical composition of the essential oil. At all concentrations, NaCl reduced the relative growth rate in comparison with that observed for the controls. No significant difference in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alecrim-da-chapada; Carvacrol; Salt stress; Thymol. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300006 |
| |
|
| |
|
|
| SOUZA, A. V. de; SANTOS, U. S. dos; CORRÊA, R. M.; SOUZA, D. D. de; OLIVEIRA, F. J. V. de. |
| Lippia gracilis is a native species of the Caatinga, whose leaves have significant potential for economic use by chemical and pharmaceutical industries due to the presence of thymol and carvacrol. Considering the lack of agronomic data for the species, especially for semi-arid conditions where it is possible to find natural populations, the aim of this work was to assess the effects of drought and different doses of organic fertilization in biomass production and content, yield and chemical composition of the essential oil. The experiment was conducted with 16 treatments that consisted of presence and absence of organic fertilizer, mineral fertilizer and irrigation. The analyzed variables after 120 days of culture were: total length until the last leaf,... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Lippia gracilis; Planta nativa; Thymol; Carvacrol; Composição química; Óleo essencial; Alecrim do mato; Planta medicinal; Bioma Caatinga; Verbenaceae; Essential oil; Medicinal plants. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077445 |
| |
|
|
| FERREIRA,POLLYANNA M.F.; CALDAS,DÉBORA W.; SALARO,ANA LÚCIA; SARTORI,SIRLENE S.R.; OLIVEIRA,JERUSA M.; CARDOSO,ALEX J.S.; ZUANON,JENER A.S.. |
| ABSTRACT This study aimed to evaluate the effect of oregano oil on the intestinal and liver morphometry of yellow tail tetra, Astyanax altiparanae. Fish (1.46 ± 0.09 g) were kept in a 60-L aquaria, at a stocking density of 0.5 fi sh L-1. Six diets containing varying amounts of oregano oil were evaluated (0.0; 0.5; 1.0; 1.5; 2.0 and 2.5 g of oregano oil kg-1). At the end of 90 days, the fi sh were euthanised. Four intestines and four livers were collected per treatment, which were fi xed in Bouin and embedded in resin. For height and width folds, the absorption surface area and thickness of the muscular layer a positive linear effect of oregano oil was observed. A decrescent linear effect on the total number of goblet cells was also observed. For the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Growth promoter; Intestinal histology; Liver histology; Origanum vulgare; Thymol. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300911 |
| |
|
|
| Farias-Junior,Paulo A; Rios,Marcos C; Moura,Tauanny A; Almeida,Roque P; Alves,Pericles B; Blank,Arie F; Fernandes,Roberta P M; Scher,Ricardo. |
| Leishamaniasis is a disease that affects more than 2 million people worldwide, whose causative agent is Leishmania spp. The current therapy for leishmaniasis is far from satisfactory. All available drugs, including pentavalent antimony, require parenteral administration and are potentially toxic. Moreover, an increase in clinical resistance to these drugs has been reported. In this scenario, plant essential oils used traditionally in folk medicine are emerging as alternative sources for chemotherapeutic compounds. In this study, in vitro leishmanicidal effects of a thymol- and a carvacrol-rich essential oil from leaves of Lippia sidoides Cham. were investigated. The essential oils were extracted and their constituents were characterized by gas... |
| Tipo: Journal article |
Palavras-chave: Carvacrol; P-cymene; Essential oil composition; Leishmania chagasi; Lippia ssp.; Thymol; Verbenaceae. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400012 |
| |
|
|
| BANHARA, P.; ASSALIN, M. R.; QUEIROZ, S. C. do N. de. |
| Resumo: Um dos grandes desafios na piscicultura é a ocorrência de doenças. Diferentes antibióticos comerciais são utilizados para controlar essas doenças, porém, seu uso prolongado pode levar à resistência de tais medicamentos. Deste modo, faz-se necessário o uso de métodos alternativos e inovadorespara o controle sanitário em peixes. Os óleos essenciais apresentam-se como uma boa alternativa. No entanto, fatores como a baixa solubilidade em água e volatilidade limitam seu uso. Neste trabalho, nanopartículas poliméricas carregadas com carvacrol foram preparadas pelo método denanoprecipitação, utilizando-se poly-E-caprolactone (PCL) e quitosana. Aeficiência de encapsulamento foi determinada de forma indireta, por meio da cromatografia líquida de alta... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Tilápia Nilótica; Bacteriose; Óleo Essencial; Aquicultura; Piscicultura; Tilapia (common name); Fish diseases; Essential oils; Carvacrol; Streptococcus agalactiae; Nanoparticles; Nanomaterials; Aquaculture. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126463 |
| |
| Registros recuperados: 26 | |
|
|
|
