Consulta: subjectFacets:"Lippia alba"
Registros recuperados: 18
Data/hora: 09/06/2024 10:40:28

Chemical composition and antigenotoxic properties of Lippia alba essential oils
Provedor de dados: 74
Autores: López,Molkary Andrea; Stashenko,Elena E.; Fuentes,Jorge Luis.
The present work evaluated the chemical composition and the DNA protective effect of the essential oils (EOs) from Lippia alba against bleomycin-induced genotoxicity. EO constituents were determined by Gas Chromatography/Mass Spectrometric (GC-MS) analysis. The major compounds encountered being citral (33% geranial and 25% neral), geraniol (7%) and trans-β-caryophyllene (7%) for L. alba specimen COL512077, and carvone (38%), limonene (33%) and bicyclosesquiphellandrene (8%) for the other, COL512078. The genotoxicity and antigenotoxicity of EO and the compounds citral, carvone and limonene, were assayed using the SOS Chromotest in Escherichia coli. The EOs were not genotoxic in the SOS chromotest, but one of the major compound (limonene) showed genotoxicity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Essential oil; Antigenotoxicity; Bleomycin; SOS chromotest.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000300019

Avaliação agronômica e identificação de quimiotipos de erva cidreira no Distrito Federal
Provedor de dados: 75
Autores: Jannuzzi,Hermes; Mattos,Jean Kleber A; Vieira,Roberto F; Silva,Dijalma B; Bizzo,Humberto R; Gracindo,Ligia AM.
Com o objetivo de avaliar o comportamento agronômico, o potencial de rendimento de óleo essencial e identificar os quimiotipos de 16 acessos de Lippa alba (erva cidreira) da coleção da Universidade de Brasília foi conduzido um experimento de campo em Latossolo Vermelho, sob irrigação por gotejamento na região do Cerrado do Distrito Federal. Foram avaliados a época de florescimento, hábito de crescimento, área foliar, comprimento da haste, massa fresca de folhas e hastes, massa foliar seca, teor e rendimento de óleo essencial e perfil aromático. O óleo essencial foi extraído por hidrodestilação em aparelho de Clevenger modificado e os constituintes identificados e quantificados através de cromatografia em fase gasosa acoplada a espectrometria de massas. O...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Óleo essencial; Limoneno; Linalol; Mirceno; Citral.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000400006

Cuttings of Lippia alba with emphasis on time for seedling formation, substrates and plant growth regulators
Provedor de dados: 75
Autores: Lima,Cristina B; Boaventura,Ana C; Gomes,Marli M.
We aimed to establish the period of time required for seedlings formation, as well as to evaluate the effect of substrates and plant growth regulators in cuttings of L. alba. Three experiments were performed, with statistical designs chosen according to each test objectives. Rooting (%), shoot height (cm), longest root length (cm), leaves number, fresh and dry matter masses (g), were analyzed. The absolute rate of shoot and root system growth, together with the relationship between dry mass of roots and shoots were efficient in predicting the period of greatest speed and accumulation of organic matter in plants. The plant growth regulators favored the vegetative performance of seedlings, with better development 30 days after the cuttings containing mineral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Propagation; IBA; Rooting.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000200015

Adubação orgânica e altura de corte da erva-cidreira brasileira
Provedor de dados: 75
Autores: Santos,Maurício R.A.; Innecco,Renato.
Avaliou-se os efeitos da adubação orgânica e de alturas de corte em plantas de Lippia alba, quimiotipo limoneno-carvona, na produção de matéria seca foliar e de óleo essencial, no Nordeste brasileiro. As doses 0; 2 e 4 kg m-2 de adubo foram aplicadas em parcelas subdivididas em cortes de 15; 30 e 45 cm de altura, agrupadas em blocos casualizados. Foram realizadas colheitas aos 60 e 120 dias após o plantio. A adubação não influenciou significativamente as produções de matéria seca foliar e de óleo essencial. O corte a 45 cm de altura resultou na maior produção de matéria seca foliar. As maiores concentrações de óleo essencial foram obtidas nos cortes a 30 e 45 cm de altura.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Verbenaceae; Óleo essencial.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362004000200004

Ação de fitorreguladores no crescimento da erva-cidreira-brasileira
Provedor de dados: 75
Autores: Stefanini,Mirian Baptista; Rodrigues,Selma Dzimidas; Ming,Lin Chau.
Lippia alba, espécie brasileira da família Verbenaceae, é plantada e usada em todo o Brasil por suas atividades farmacológicas como analgésica, antiespasmódica, calmante, sedativa e citostática. Popularmente a Lippia é denominada de alecrim, cidreira falsa ou falsa melissa. O trabalho visou testar o efeito das aplicações de GA3, ethephon e CCC sobre o crescimento de Lippia alba (Mill.) N.E.Br. - Verbenaceae, em diferentes épocas do ano. O experimento foi instalado na Fazenda São Manuel, pertencente à UNESP em Botucatu, de dezembro/95 a dezembro/96. O mesmo consistiu de sete tratamentos e três repetições em blocos inteiramente casualizados, com os tratamentos aplicados nas parcelas e as colheitas nas subparcelas. Os tratamentos incluíram o controle, ácido...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Verbenaceae; Ácido giberélico; Ethephon; CCC; Plantas medicinais.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000100003

Biomass production and essential oil of lemon balm cultivated under colored screens and nitrogen
Provedor de dados: 75
Autores: Alves,Aglair C; Jesus,Fábio N; Alves,Péricles B; Santos,Hamilton V; Souza,Girlene S; Santos,Anacleto R.
ABSTRACT The aim of this study was to evaluate the effect of light quality and nitrogen availability on the biomass production, yield and composition of essential oil of lemon balm (Lippia alba). Five doses of N (0; 40; 80; 120 and 160 kg ha-1) were studied, using urea and three light quality conditions obtained with the use of colored shading nets (blue and red), 50% irradiance and under full sun. The experiment was arranged in a 5x3 factorial scheme, in split plots, with seven replicates. After 60 days of cultivation under the shading nets, a higher dry leaf biomass (4.83 g per plant) was observed in the plants under blue net cultivation at a dose of 102 kg ha-1 of N. The plants grown under full sun presented greater amount of neral and geranial, major...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Shading nets; Nitrogen fertilization; Medicinal plant; Light quality.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100094

Seasonal variability of the antimicrobial activity of the essential oil of Lippia alba
Provedor de dados: 124
Autores: Machado,Terezinha Feitosa; Pereira,Rita de Cássia Alves; Batista,Valéria Chaves Vasconcelos.
Lippia alba is a shrub of the Verbenaceae family, popularly known as lemon balm. It's essential oil is said to have broad-spectrum antimicrobial activity whose effectiveness varies according to its composition, which is influenced by both biotic and abiotic factors. The present study aimed to evaluate the antimicrobial effectiveness of oil taken from the leaves of L. alba collected at different times of the year, against microorganisms of importance in food. The oil, obtained by hydrodistillation, was tested against standard cultures of Pseudomonas aeruginosa, Salmonella choleraesuis, Escherichia coli, Staphylococcus aureus, Listeria monocytogenes and Listeria innocua using agar diffusion techniques. The different sampling times had a big influence on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Antimicrobial activity; Seasonality.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300011

Bioconcentraciones foliares de elementos minerales en Lippia alba (salvia morada)
Provedor de dados: 98
Autores: Schroeder,María A; Burgos,Ángela M.
Introducción: la salvia morada es un subarbusto aromático, que crece de modo espontáneo en América Central y del Sur. Frecuentemente es cultivada en jardines como ornamental, por su intenso aroma y sus propiedades medicinales y culinarias. No se encontraron estudios sobre parámetros nutricionales en esta especie. Objetivos: determinar las bioconcentraciones foliares de elementos minerales en Lippia alba (Mill.) N. E. Br. ex Britton &amp;amp; P. Wilson que crece naturalmente en el bioambiente del norte de la provincia de Corrientes. Métodos: se evaluaron muestras foliares de plantas de Lippia alba de más de 2 años de implantación. Las variables analizadas fueron las concentraciones foliares de nitrógeno, fósforo, potasio, azufre, cinc, cobre, hierro y...
Tipo: Journal article
Palavras-chave: Salvia morada; Plantas medicinales; Estado nutricional; Lippia alba.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000400007

CHINCHES HARINOSAS (HEMIPTERA: COCCOIDEA) ASOCIADAS A PLANTAS MEDICINALES
Provedor de dados: 100
Autores: Martínez,María de los A; Blanco,Eleazar.
Se da a conocer la presencia de cuatro especies de cochinillas harinosas de los géneros: Nipaecoccus Sulc; Paracoccus Ezzat y Mc Connell y Phenacoccus Cokerell asociadas a las plantas medicinales Lippia alba (Mill) (quitadolor o hinojo de anís), Lippia geminata Kunth (salvia) y Ocimum sanctum L. (albahaca morada).
Tipo: Journal article
Palavras-chave: Chinches harinosas; Plantas medicinales; Lippia alba; Lippia geminata; Ocimum sanctum; Pseudococcidae; Hemiptera.
Ano: 2010
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522010000100013

Morfología y anatomía de las flores y semillas de pronto alivio
Provedor de dados: 109
Autores: Muñoz,Aida M.; Vallejo C,Franco A.; Sánchez O,Manuel S.
RESUMEN En la descripción se utilizaron tres accesiones de Lippia alba provenientes de Llanos Orientales y Valle (Colombia) y Costa Rica (Centro América). Las inflorescencias son espigas racemosas simples, de flores sésiles, color lila pálido y dispuestas a lo largo del raquis, localizadas en las axilas, en pares y opuestas. Las flores dispuestas en ramas principales, secundarias y terciarias presentan dos sépalos blancos, pubescentes y miden 1.5 mm de longitud. Cubriendo cada par de sépalos hay una bráctea verde, ovada y posee una longitud entre 3 y 5 mm. Una flor abierta mide hasta 7.0 mm y entre 3 y 4 mm de ancho. Son gamopétalas, zigomorfas, pubescentes, tubulares, de color lila, bilabiadas, con cuatro pétalos, hipóginas, gineceo sincárpico y...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lippia alba; Verbenaceae; Biología floral; Semillas.
Ano: 2007
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122007000100007

Toxicity Of The Essential Oil Of The Cytral Chemotype Of Lippia Alba (Mill.) N. E. Brown
Provedor de dados: 40
Autores: 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

Karyotype analysis, DNA content and molecular screening in Lippia alba (Verbenaceae)
Provedor de dados: 42
Autores: Pierre,Patrícia M.O.; Sousa,Saulo M.; Davide,Lisete C.; Machado,Marco A.; Viccini,Lyderson F.
Cytogenetic analyses, of pollen viability, nuclear DNA content and RAPD markers were employed to study three chemotypes of Lippia alba (Mill.) (Verbenaceae) in order to understand the genetic variation among them. Different ploidy levels and mixoploid individuals were observed. This work comprises the first report of different chromosome numbers (cytotypes) in L. alba. The chromosome numbers of La2-carvone and La3-linalool chemotypes suggested that they are polyploids. Flow cytometric analysis showed an increase of nuclear DNA content that was not directly proportional to ploidy level variation. A cluster analysis based on RAPD markers revealed that La3-linalool shares genetic markers with La1-citral and La2-carvone. The analysis showed that the majority...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cheotype; Cytogenetic; Cytotype; DNA content; RAPD; Lippia alba.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300018

Essential oil of Lippia alba and its main constituent citral block the excitability of rat sciatic nerves
Provedor de dados: 56
Autores: Sousa,D.G.; Sousa,S.D.G.; Silva,R.E.R.; Silva-Alves,K.S.; Ferreira-da-Silva,F.W.; Kerntopf,M.R.; Menezes,I.R.A.; Leal-Cardoso,J.H.; Barbosa,R.
Lippia alba is empirically used for infusions, teas, macerates, and hydroalcoholic extracts because of its antispasmodic, analgesic, sedative, and anxiolytic effects. Citral is a mixture of trans-geranial and cis-neral and is the main constituent of L. alba essential oil and possesses analgesic, anxiolytic, anticonvulsant, and sedative effects. The present study evaluated the effects of the essential oil of L. alba (EOLa) and citral on compound action potentials (CAPs) in Wistar rat sciatic nerves. Both drugs inhibited CAP in a concentration-dependent manner. The calculated half-maximal inhibitory concentrations (IC50) of peak-to-peak amplitude were 53.2 µg/mL and 35.00 µg/mL (or 230 µM) for EOLa and citral, respectively. Peak-to-peak amplitude of the CAP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citral; Nerve excitability; Lippia alba; Sciatic nerve; Essential oil; Compound action potential.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800697

Anxiolytic effects of repeated treatment with an essential oil from Lippia alba and (R)-(-)-carvone in the elevated T-maze
Provedor de dados: 56
Autores: Hatano,V.Y.; Torricelli,A.S.; Giassi,A.C.C.; Coslope,L.A.; Viana,M.B.
Lippia alba (Mill.) N.E. Brown (Verbenaceae) is widely used in different regions of Central and South America as a tranquilizer. The plant’s anxiolytic properties, however, merit investigation. The present study evaluated the effects of repeated daily (14 days) intraperitoneal (ip) treatment with an essential oil (EO) from a chemotype of L. alba (LA, chemotype II, 12.5 and 25 mg/kg; N = 6-8) and (R)-(-)-carvone (25 mg/kg; N = 8-12), the main constituent of this chemotype, on male Wistar rats (weighing 250 g at the beginning of the experiments) submitted to the elevated T-maze (ETM). The ETM allows the measurement of two defensive responses: inhibitory avoidance and one-way escape. In terms of psychopathology, these responses have been related to...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Lippia alba; Essential oil; Carvone; Anxiety; Elevated T-maze.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300009

Chemical characterization of Lippia alba essential oil: an alternative to control green molds
Provedor de dados: 58
Autores: Glamočlija,Jasmina; Soković,Marina; Tešević,Vele; Linde,Giani Andrea; Colauto,Nelson Barros.
The essential oil of Lippia alba is reported as an antifungal against human pathogenic microorganisms but few articles report its use as an alternative to synthetic fungicides on green mould control. The objective of this study was to determine chemical characteristics of L. alba essential oil and its antifungal activity against green molds as an alternative to synthetic fungicides. Essential oil was extracted by Clevenger hydrodistillation, characterized by GC-MS analysis, and the structure of the main compounds confirmed by ¹H and 13C-NMR spectroscopy. Microdilution assays evaluated the essential oil minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC). Commercial fungicides Ketoconazole and Bifonazole were used as control....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal; Essential oil; Neral; Geranial; Lippia alba.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400041

Propagação vegetativa de Lippia alba
Provedor de dados: 65
Autores: Biasi,Luiz Antônio; Costa,Giampalolo.
A Lippia alba é uma planta medicinal nativa da América do Sul muito utilizada pela sua propriedade calmante. No presente trabalho estudou-se a propagação vegetativa dessa espécie, visando a obtenção de uma forma eficiente de formação de mudas. Foram testados diferentes tipos de estaca (medianas com 4 folhas, medianas com 2 folhas, medianas sem folhas e apicais), tamanhos de estacas lenhosas (5, 10, 15 e 20cm) e substratos (casca de arroz carbonizada, vermiculita, solo e Plantmax®). Todos os tipos de estaca apresentaram altas taxas de enraizamento, comprovando que a L. alba é uma espécie de fácil enraizamento. As estacas medianas com quatro folhas foram as que apresentaram o maior desenvolvimento radicial, ao contrário das estacas sem folhas. As estacas com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estaquia; Planta medicinal; Lippia alba.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000300010

Antimicrobial activity of essential oils from Lippia alba, Lippia sidoides, Cymbopogon citrates, Plectranthus amboinicus, and Cinnamomum zeylanicum against Mycobacterium tuberculosis
Provedor de dados: 65
Autores: 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

Citral chemotype of the Lippia alba essential oil as an additive in simulated transport with different loading densities of tambaqui juveniles
Provedor de dados: 65
Autores: Silva,Hugo Napoleão Pereira da; Souza,Rodrigo Numeriano de; Sousa,Elen Monique de Oliveira; Mourão,Rosa Helena Veras; Baldisserotto,Bernardo; Silva,Lenise Vargas Flores da.
ABSTRACT: The objective of this study was to evaluate the efficacy of the citral chemotype of Lippia alba essential oil (EOLA) as an additive in a simulated transport with different loading densities of tambaqui (Colossoma macropomum) juveniles. Simulated transport of tambaqui juveniles at three loading densities (30, 60 and 90 fish/L) was carried out either with only water (WC) or 20 μL.L-1 EOLA. Dissolved oxygen levels, pH, conductivity and temperature of the water were measured at the beginning and end of the simulated transport. Treatment with EOLA did not change survival or dissolved oxygen levels at the end of simulation. The pH of the water at the end of simulation with EOLA was lower than in that of WC but did not change with loading density. Water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish transportation; Additive; Water quality; Lippia alba; Oxygen; Conductivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400702