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| Registros recuperados: 125 | |
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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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| 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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| PEREIRA,FLAVIANE G.; MARQUETE,RONALDO; DOMINGOS,LEVY T.; ROCHA,MARCO E.N.; FERREIRA-PEREIRA,ANTONIO; MANSUR,ELISABETH; MOREIRA,DAVYSON L.. |
| ABSTRACT Casearia genus (Salicaceae) is found in sub-tropical and tropical regions of the world and comprises about 160-200 species. It is a medicinal plant used in South America, also known as “guaçatonga”, “erva-de-tiú”, “cafezinho-do-mato”. In Brazil, there are about 48 species and 12 are registered in the State of Rio de Janeiro, including Casearia sylvestris Sw. There are many studies related to the chemical profile and cytotoxic activities of extracts from these plants, although few studies about the antifungal potential of the essential oil have been reported. In this work, we have studied the antifungal properties of the essential oil of C. sylvestris leaves, as well as of their fractions, against four yeasts (Saccharomyces cerevisae, Candida... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candida sp.; Casearia genus; Essential oil; Medicinal plant; Saccharomyces cerevisae.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602817 |
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| MORAES,LILIA A.S.; FACANALI,ROSELAINE; MARQUES,MARCIA ORTIZ M.; LIN,CHAU MING; MEIRELES,M. ANGELA A.. |
| Ocimum selloi Benth, a native plant of Brazil, has medicinal uses as anti-diarrheic, antispasmodic and anti-inflammatory product. The yield of essential oils of the inflorescences, containing flowers and seeds, was 0.6%, and the yield of leaves, collected in two different seasons, was 0.25% (June 2000) and 0.20% (January 2001), respectively. The essential oils of the inflorescences and leaves presented as major constituents trans-anethol (41.34%, 45.42%, 58.59%) and methyl chavicol (27.10%, 24.14%, 29.96%). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plants; Ocimum selloi; Essential oil; Leaves; Inflorescence. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100014 |
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| Albuquerque,Maria Rose Jane R.; Costa,Sonia Maria O.; Bandeira,Paulo N.; Santiago,Gilvandete Maria P.; Andrade-Neto,Manoel; Silveira,Edilberto R.; Pessoa,Otilia D.L.. |
| The chemical composition of the essential oils from aerial parts of Pectis apodocephala and Pectis oligocephala were analyzed by GC-MS. The essential oils of these species were predominantly constituted by monoterpenes. Geranial (42.9-44.5%), neral (32.2-34.2%) and alpha-pinene (10.7-11.4%) were the main constituents in the oil of P. apodocephala, while p-cymene (50.3-70.9%) and thymol (24.4-44.7%), were the prevalent compounds in the oil of P. oligocephala. The essential oils were tested against the root knot nematode Meloidogyne incognita and Aedes aegypti larvae survival. The results obtained show that both essential oils exhibited significant activity and could be considered as potent natural namaticidal and larvicidal agents. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pectis apodocephala; Pectis oligocephala; Essential oil; Nematicidal activity; Larvicidal activity. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200003 |
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| GERAMI,FARZAD; MOGHADDAM,PARVIZ R.; GHORBANI,REZA; HASSANI,ABBAS. |
| ABSTRACT In order to evaluate the effect of irrigation intervals and cattle manure levels on morphological traits, essential oil content and yield of oregano, an experiment was conducted at the experimental Farm of the Faculty of Agriculture, Urmia University, Iran. The experimental design was split-plots, arranged in randomized complete blocks with three replications. Main plots including irrigation intervals (1, 2 and 3 weeks) and four levels of cattle manure at 0, 10, 20 and 30 t ha-1 were allocated to sub plots. Our results showed that increasing irrigation intervals reduced values of all morphological traits except for proportion of stems. Also, values for stems number, plant spread, stem diameter, leaf area, fresh and dry herb yield increased by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle manure; Essential oil; Irrigation; Origanum vulgare L.; Yield.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000602375 |
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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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| PEREIRA,RAFAEL; PEREIRA,ANNA L.; FERREIRA,MARCILIO M.; FONTENELLE,RAQUEL O.S.; SAKER-SAMPAIO,SILVANA; SANTOS,HÉLCIO S.; BANDEIRA,PAULO N.; VASCONCELOS,MAYRON A.; QUEIROZ,JOSÉ A.N.; BRAZ-FILHO,RAIMUNDO; TEIXEIRA,EDSON H.. |
| Abstract: This study evaluated the antibacterial, antifungal, and antioxidant effect of 7-hydroxy-4’,6-dimethoxy-isoflavone and essential oil of Myroxylon peruiferum. The compound was isolated and its structure elucidated by NMR. The chemical composition of essential oil determined by GC-MS analysis. To evaluation of antimicrobial activity, the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and Minimum Fungicidal Concentration (MFC) were performed. In addition to analysis of antioxidant activity, DPPH radical scavenging tests, iron chelating assay (FIC), antioxidant reducing power assay (FRAP) and β-carotene bleaching assay (BCB) were performed. For the essential oil were identified 24 organized compounds having as main... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial activity; Antioxidant activity; Essential oil; Isoflavone; Myroxylon peruiferum. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300602 |
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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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| ARAÚJO,LILHIAN A.; ARAÚJO,RAFAEL G.M.; GOMES,FLÁVIA O.; LEMES,SUSY R.; ALMEIDA,LUCIANE M.; MAIA,LAURO J.Q.; GONÇALVES,PABLO J.; MRUÉ,FÁTIMA; SILVA-JUNIOR,NELSON J.; MELO-REIS,PAULO R. DE. |
| ABSTRACT This study analyzed the physicochemical and photophysical properties of essential oil of Curcuma longa and its angiogenic potential. The results showed that curcumin is the main fluorescent component present in the oil, although the amount is relatively small. The experimental chorioallantoic membrane model was used to evaluate angiogenic activity, showing a significant increase in the vascular network of Curcuma longa and positive control groups when compared to the neutral and inhibitor controls (P <0.05), but no significant difference was found between Curcuma longa essential oil and the positive control (P >0.05). Histological analysis showed extensive neovascularization, hyperemia and inflammation in the positive control group and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Angiogenic activity; Curcumin; Essential oil; Physicochemical. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501889 |
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| FEDER,DENISE; GONZALEZ,MARCELO S.; MELLO,CÍCERO B.; SANTOS,MARCELO G.; ROCHA,LEANDRO; KELECOM,ALPHONSE; FOLLY,EVELIZE. |
| Abstract: As a part of our continuing search for insect and arthropod development regulators from Brazilian restinga vegetation of the Rio de Janeiro State, crude extracts, purified fractions and essential oils were submitted to screening tests seeking for biological activities on the development of the insects Rhodnius prolixus, Dysdercus peruvianus, Oncopeltus fasciatus and Rhipicephalus (Boophilus) microplus. Up to now, 102 secondary metabolites have been detected in the fractions, among them monoterpenes, sesquiterpenes and two triterpenes which were obtained from the species, Eugenia sulcata, Pilocarpus spicatus, Manilkara subsericea, Myrciaria floribunda and Zanthoxylum caribaeum. These secondary plant metabolites are considered of interest for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arthropods; Essential oil; Green pesticide; Insect pests; Insect vectors; Insect growth regulators. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100626 |
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| Registros recuperados: 125 | |
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