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| Registros recuperados: 114 | |
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| Almeida,Marco Túlio Costa; Ezequiel,Jane Maria Bertocco; Paschoaloto,Josimari Regina; Carvalho,Vanessa Barbosa de; Perez,Henrique Leal; Fávaro,Vanessa Ruiz; D´Aurea,André Pastori; Homem Junior,Antonio Carlos. |
| ABSTRACT The objective of this study was to evaluate the effects of adding crude glycerin with food additives (sodium monensin or essential oils) to the diets of beef cattle on feed intake, ruminal parameters, in vitro digestibility, and production of greenhouse gases. Five ruminally cannulated Nellore steers were randomly assigned in a 5×5 Latin square design. The treatments were: control, without crude glycerin and additives; with essential oils and without crude glycerin; with sodium monensin and without crude glycerin; with essential oils and crude glycerin; and with sodium monensin and crude glycerin. The addition of crude glycerin caused a reduction in dry matter (DM) intake, increase in vitro dry matter digestibility, and decrease in vitro crude... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Byproduct; Essential oil; Ruminal parameters; Sodium monensin. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100616 |
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| Pontes,Wendel José Teles; Oliveira,José Cândido Guerra de; Câmara,Cláudio Augusto Gomes da; Lopes,Adelmo C. H. R.; Gondim Júnior,Manoel Guedes Correia; Oliveira,José Vargas de; Barros,Reginaldo; Schwartz,Manfred Oswald Erwin. |
| Essential oils from leaves and fruits of Protiumheptaphyllum collected in Tamandaré beach Pernambuco/Brazil were analysed by GC/MS and tested for toxicity and repellent effect against the two spotted spider mite (Tetranychus urticae). The major constituent identified in the fruits was alpha-terpinene (47.6 %) whereas oil from leaf contained mainly sesquiterpenes such as 9-epi-caryophyllene (21.4 %), trans-isolongifolanone (10.7 %) and 14-hydroxi-9-epi-caryophyllene (16.7 %). The fruit oil was found to be more effective against the mite when compared to the leaf oil. Both showed mortality properties and oviposition deterrence in higher concentration (10 µl.l-1 air), but only the essential oil from fruits induced repellence on T. urticae. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protium heptaphyllum; Essential oil; Tetranychus urticae; Acaricidal activity. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000100012 |
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| Silva,Saulo Luis da; Figueiredo,Patrícia Maria; Yano,Tomomasa. |
| Zanthoxylum rhoifolium Lam is a plant popularly used as antimicrobial, for malaria and inflammatory treatment. The essential oil of Z. rhoifolium was extracted and its cytotoxic effects against HeLa (human cervical carcinoma), A-549 (human lung carcinoma), HT-29 (human colon adenocarcinoma), Vero (monkey kidney) cell lines and mice macrophages were evaluated. Some of the terpenes of its essential oil (ß-caryophyllene, alpha-humulene, alpha -pinene, myrcene and linalool) were also tested to verify their possible influence in the oil cytotoxic activity. The results obtained permitted to confirm that the essential oil is cytotoxic against tumoral cells (CD50 = 82.3, 90.7 and 113.6 µg/ml for A-549, HeLa e HT-29 cell lines, respectively), while it did not show... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zanthoxylum; Essential oil; Cytotoxicity; SS-caryophyllene; Alpha-humulene. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000200015 |
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| Chagas, Jorge Henrique; Universidade Federal de Lavras; Pinto, Jose Eduardo Brasil Pereira; Universidade Federal de Lavras, Laboratório de Cultura de Tecidos e Plantas Medicinais.; Bertolucci, Suzan Kelly Vilela; Universidade Federal de Lavras; Santos, Fúlvia Maria do; Unviersidade Fderal de Lavras. |
| O presente estudo objetivou avaliar o efeito da época e da idade da planta na colheita na produção de biomassa seca e no teor percentual do óleo essencial e o tempo de armazenamento das plantas de Mentha arvensis L. Foram instalados dois experimentos. No primeiro, foi avaliado o efeito de três idades na colheita, 80, 100 e 120 dias após o transplantio, e três idades na segunda colheita, 60, 75 e 90 dias. O delineamento utilizado foi de blocos casualizados, com quatro repetições, em esquema fatorial 3 x 3. No segundo experimento, foram avaliadas três épocas de colheita: início de janeiro, final de março e início de junho. O material colhido foi seco em estufa a 37°C, calculada a biomassa seca da parte aérea, extraído o óleo essencial em aparelho de... |
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Palavras-chave: 5.01.00.00-9; 5.01.03.00-8 planta medicinal; Mentha arvensis L.; Óleo essencial; Colheita Fitotecnia medicinal plant; Mentha arvensis L.; Essential oil; Harvest. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5698 |
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| Queiroz, Túlio Barroso; Fonseca, Francine Souza Alves da; Mendes, Aretusa Daniela Resende; Azevedo, Alcinei Mistico; Martins, Ernane Ronie. |
| Varronia curassavica (Jacq.) is a shrub and perennial plant native to Brazil that has therapeutic, anti-inflammatory and cicatrizing properties. The objective of this work was to study the chemical diversity of the native populations of this species maintained in the in vivo germplasm bank from Montes Claros, Minas Gerais, Brazil. The essential oils of 10 accessions analyzed in triplicate were obtained by hydrodistillation. Fifty-five compounds were detected, 46 of which were identified by GC-MS analysis. Essential oil yield ranged from 0.1 (VC-9) to 1.22% (VC-3) among the studied accessions. Three groups were formed by cluster analysis. Group A presented lower relative abundance of the compounds α-humulene (1.4%) and β-caryophyllene (8.5%). Conversely, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Medicinal plant; Chemotype; Α-humulene; Β-caryophyllene. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42726 |
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| Olivero-Verbel,Jesús; Guerrero-Castilla,Angélica; Stashenko,Elena. |
| The essential oil (EO) of Lippia alba (Mill.) N. E. Brown (Verbenaceae) has been traditionally used to treat several diseases. In this study, the acute toxic effects of the citral chemotype of L. alba EO were evaluated in mice. Animals were treated via intraperitoneal receiving the L. alba essential oil at doses between 50 and 2500 mg/kg, and the control group received sesame oil (vehicle). The EO induced dose-dependent neurotoxic effects at doses greater than 1000 mg/kg, including decreased locomotion, motor skills and muscle strength, hypotonia, dyspnea, kyphosis and convulsions. The EO was lethal at a dose of 2500 mg/kg. Animals receiving 1000 mg/kg were euthanized at the end of the treatment period and their blood and livers were collected for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Lippia alba; Neurological damage; Acute toxicity. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432010000100003 |
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| Meena, Amit; Guha, Proshanta; Nandi, Sujosh. |
| Betel leaf or “Paan” is contemplated as “a neglected green gold of India” due to its nutritional, financial, medicinal, social and cultural values. However, surplus production of the leaves during the glut season and lack of adequate storage facilities compel the betel leaf growers to sell it at a through away price. Therefore, the current study was taken up to enhance the shelf life of the leaves by four different drying methods like shed drying, hot air oven drying, vacuum drying and freeze drying. Eight different thin layer drying models were studied and compared based on coefficient of determination (R2), root mean square error (RMSE) and chi square. The results showed that Page model was the best fitted model for hot air oven drying and vacuum drying... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Betel leaf; Drying techniques; Drying models; Essential oil; Sensory attributes. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5668 |
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| MOREIRA,DAVYSON L.; SOUZA,PATRÍCIA O.; KAPLAN,MARIA AUXILIADORA C.; PEREIRA,NUNO A.; CARDOSO,GERALDO L.; GUIMARÃES,ELSIE F.. |
| The essential oil from Piper solmsianum leaves and its major compound (sarisan) were tested to verify their influences upon mice behaviour. The essential oil was obtained by hydrodistillation in a modified Clevenger extractor and analysed by GC/ MS. This analysis revealed in the oil the presence of monoterpenes, sesquiterpenes and of arylpropanoids. The compound sarisan, a myristicin analogue, was isolated from the oil to perform the pharmacological tests. Emulsions of the oil and of sarisan (5.0 and 10.0% v/v) were used in the tests. Pentobarbital (30 mg/ kg s.c.) or diazepam (2.5 mg/ kg s.c.) were tested as standard drugs to verify depressant or anxiolytic effects, respectively. Both essential oil and sarisan showed to have exciting and depressant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piperaceae; Piper solmsianum; Essential oil; Sarisan; Psychopharmacologic effect. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000100004 |
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| Volpato,Gustavo T.; Francia-Farje,Luis A.D.; Damasceno,Débora C.; Oliveira,Renata V.; Hiruma-Lima,Clélia A.; Kempinas,Wilma G.. |
| Citrus aurantium L., commonly known as bitter orange, is widely used in folk medicine, but there is little data in the literature about the effects on pregnancy. The aim of the present study was to evaluate the influence of essential oil obtained from fruits of Citrus aurantium on the maternal reproductive outcome and fetal anomaly incidence in rats. Pregnant Wistar rats were randomized into four groups (n minimum = 12 animals/group): G1 = control, G2 to G4 = treated with essential oil from C. aurantium at dose 125, 250 and 500 mg/kg, respectively. Rats were orally treated, by gavage, with plant essential oil or vehicle during pre-implantation and organogenic period (gestational day 0-14). On gestational day 20 the rats were anaesthetized and the gravid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus aurantium; Essential oil; Limonene; Malformation; Pregnancy; Reproductive outcome. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100407 |
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| Fabri,Rodrigo L.; Coimbra,Elaine S.; Almeida,Ana C.; Siqueira,Ezequias P.; Alves,Tânia M.A.; Zani,Carlos L.; Scio,Elita. |
| In our previous work (Fabri et al. 2009), we showed that different extracts of Mitracarpus frigidus had significant antibacterial, antifungal and leishmanicidal activities. In order to increase our knowledge about this species, this work assesses the chemical composition and the in vitro biological activity of its essential oil. Thus, the essential oil obtained by hydrodistillation of the aerial parts of M. frigidus was analyzed by GC/MS. Among several compounds detected, 11 were identified, being linalool and eugenol acetate the major components. The essential oil exhibited a moderate antibacterial effect against Staphyloccocus aureus, Bacillus cereus, Pseudomonas aeruginosa and Enterobacter cloacae (MIC 250 µg/mL). On the other hand, it showed a strong... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mitracarpus frigidus; Essential oil; Antimicrobial; Antileishmanial; Cytotoxicity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400021 |
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| BOLIGON,ALINE A.; PIANA,MARIANA; BRUM,THIELE F. DE; FROEDER,AMANDA L.F.; BELKE,BIANCA V.; SCHWANZ,THIAGO G.; MARIO,DÉBORA N.; ALVES,SYDNEY H.; ATHAYDE,MARGARETH L.. |
| The volatile oil from the stem bark of Scutia buxifolia (Rhamnaceae) has been obtained by hydrodistillation and analyzed by GC-MS. Twenty-one components were identified representing 99.93 % of the total oil composition, spathulenol (35.87%), β-cubebene (17.26%), germacrene D (6.43%), linalool (5.19%), carvacrol (4.05%) were the main components of S. buxifolia essential oil. Antioxidant and antimicrobial properties of the essential oil were evaluated by free radical scavenging (DPPH) assay and micro broth dilution method, respectively. S. buxifolia essential oil presented interesting radical scavenging activity (IC50 = 15.03 ± 0.11 µg/mL). The antibacterial assay showed that S. buxifolia stem bark essential oil was moderately active against the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scutia buxifolia; Essential oil; Antioxidant; Antimicrobial. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301463 |
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| ANDRADE,PRISCILA M. DE; MELO,DAIANA C. DE; ALCOBA,ANA ELISA T.; FERREIRA JÚNIOR,WALNIR G.; PAGOTTI,MARIANA C.; MAGALHÃES,LIZANDRA G.; SANTOS,TAINÁ C.L. DOS; CROTTI,ANTÔNIO E.M.; ALVES,CASSIA C.F.; MIRANDA,MAYKER L.D.. |
| Abstract Leishmaniasis is an endemic disease caused by protozoa of the genus Leishmania, which affects around two million people worldwide. One major drawback in the treatment of leishmaniasis is the emergence of resistance to current chemotherapeutics. Medicinal and aromatic plants constitute a major source of natural organic compounds. In this study, the leaf essential oil of Cryptocarya aschersoniana was obtained by hydrodistillation in a Clevenger-type apparatus, and the chemical composition was analyzed by GC-MS and GC-FID. The essential oil of these species was predominantly constituted by monoterpene hydrocarbons (48.8%). Limonene (42.3%), linalool (9.7%) and nerolidol (8.6%) were the main constituents in the oil of C. aschersoniana. The in vitro... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryptocarya aschersoniana; Lauraceae; Essential oil; Leishmania amazonensis; Cytotoxic activity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602671 |
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| ESTEVAM,ELISÂNGELA B.B.; DEUS,ISABELLA P.B. DE; SILVA,VANESSA P. DA; SILVA,ELIZABETH A.J. DA; ALVES,CASSIA C.F.; ALVES,JOSÉ MILTON; CAZAL,CRISTIANE M.; MAGALHÃES,LIZANDRA G.; PAGOTTI,MARIANA C.; ESPERANDIM,VIVIANE R.; SOUZA,ALEX F.; MIRANDA,MAYKER L.D.. |
| ABSTRACT Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more effective and safer drugs for the treatment of these diseases is necessary. Natural products have stood out as an alternative to searching for new bioactive molecules with therapeutic potential. In this study, the chemical composition and antiparasitic activity of the essential oil from Protium ovatum leaves against trypomastigote forms of Trypanosoma cruzi and the promastigote forms of Leishmania amazonensis were evaluated. The essential oil was promising... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trypanosoma cruzi; Leishmania amazonensis; Essential oil; Protium ovatum; Parasitic diseases. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603005 |
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| Registros recuperados: 114 | |
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