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| Alves,Maria da Conceição Sampaio; Medeiros Filho,Sebastião; Innecco,Renato; Torres,Salvador Barros. |
| O objetivo deste trabalho foi identificar possíveis efeitos alelopáticos de extratos voláteis de óleos essenciais na germinação e no comprimento da raiz de plântulas de alface. Foram utilizadas cinco concentrações de cada óleo (0,0, 0,001, 0,01, 0,1 e 1,0%, v/v), em delineamento inteiramente casualizado, com quatro repetições de 25 sementes de alface. Os extratos voláteis de óleos essenciais de canela, alecrim-pimenta, capim-citronela e alfavaca-cravo evidenciaram potencialidades alelopáticas na germinação e comprimento das raízes de plântulas de alface, efeitos que variaram de acordo com a concentração do óleo. O extrato volátil de óleo de jaborandi estimula o crescimento da radícula e não provoca inibição da germinação de sementes de alface,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Cinnamomum zeylanicum; Lippia sidoides; Cymbopogon citratus; Ocimum gratissimum; Pilocarpus microphyllus. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004001100005 |
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| Silva,Lenise de Lima; Silva,Daniela Thomas da; Garlet,Quelen Iane; Cunha,Mauro Alves; Mallmann,Carlos Augusto; Baldisserotto,Bernardo; Longhi,Solon Jonas; Pereira,Ana Maria Soares; Heinzmann,Berta Maria. |
| There is an increasing demand for inexpensive and safe anesthetics that can reduce fish stress caused by some procedures such as capture and handling. In this context, the present study evaluated the potential of essential oils (EO) of three Brazilian native plants (Hesperozygis ringens, Lippia sidoides and Ocotea acutifolia) as anesthetics for the silver catfish - Rhamdia quelen. Moreover, an analysis was made of the chemical composition of these oils and their influence on stress parameter. EO of H. ringens and O. acutifolia were effective as anesthetics, without behavioral side effects. EO of O. acutifolia (150 µL L-1) promoted an increase in blood glucose level. Regarding to the composition, pulegone accounts for 96.63% of the EO of H. ringens, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Hesperozygis ringens; Lippia sidoides; Ocotea acutifolia; Stress. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200443 |
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| 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 |
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| Botelho,M.A.; Nogueira,N.A.P.; Bastos,G.M.; Fonseca,S.G.C.; Lemos,T.L.G.; Matos,F.J.A.; Montenegro,D.; Heukelbach,J.; Rao,V.S.; Brito,G.A.C.. |
| Dental caries and periodontal disease are associated with oral pathogens. Several plant derivatives have been evaluated with respect to their antimicrobial effects against such pathogenic microorganisms. Lippia sidoides Cham (Verbenaceae), popularly known as "Alecrim-pimenta" is a typical shrub commonly found in the Northeast of Brazil. Many plant species belonging to the genus Lippia yield very fragrant essential oils of potential economic value which are used by the industry for the commercial production of perfumes, creams, lotions, and deodorants. Since the leaves of L. sidoides are also extensively used in popular medicine for the treatment of skin wounds and cuts, the objective of the present study was to evaluate the composition and antimicrobial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia sidoides; Essential oil; Antimicrobial activity; Oral pathogens. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000300010 |
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| Barbosa,R.; Cruz-Mendes,Y.; Silva-Alves,K.S.; Ferreira-da-Silva,F.W.; Ribeiro,N.M.; Morais,L.P.; Leal-Cardoso,J.H.. |
| Lippia sidoides Cham is a typical herb species of Northeast Brazil with widespread use in folk medicine. The major constituents of the essential oil of L. sidoides (EOLs) are thymol, p-cymene, myrcene, and caryophyllene. Several studies have shown that the EOLs and its constituents have pharmacological effects, including antibacterial, anti-inflammatory, antioxidant and neuroprotective activity. Therefore, this work aimed to investigate the effects of the EOLs and their main constituents on rat sciatic nerve excitability. The sciatic nerves of adult Wistar rats were dissected and mounted in a moist chamber. Nerves were stimulated by square wave pulses, with an amplitude of 40 V, duration of 100 μs to 0.2 Hz. Both EOLs and thymol inhibited compound action... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compound action potential; Essential oil; Lippia sidoides; Thyme oil; P-cymene; Myrcene. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200611 |
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| Costa,Andréa S da; Arrigoni-Blank,Maria de Fátima; Blank,Arie F; Mendonça,Aline B de; Amancio,Verônica F; Ledo,Ana da S. |
| O alecrim-pimenta (Lippia sidoides Cham.) é um arbusto nativo da região do semi-árido do nordeste brasileiro, cujo óleo essencial possui elevado valor comercial devido aos seus constituintes majoritários, o timol e o carvacrol, de potente propriedade antimicrobiana e anti-séptica. Avaliou-se os efeitos de concentrações e tempos de imersão em hipoclorito de sódio, de meios de cultivo e da utilização de antibiótico e antioxidantes no estabelecimento in vitro de alecrim-pimenta. Os experimentos foram conduzidos em delineamento inteiramente casualizado. Foram avaliadas as concentrações 0,2; 0,4; 0,6 e 0,8% de hipoclorito de sódio e 8; 12; 16 e 20 minutos de imersão, em esquema fatorial 4 x 4; as concentrações 0; 50; 100; 150 e 200 mg L-1 do antibiótico... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia sidoides; Planta medicinal nativa; Micropropagação; Controle de contaminação; Oxidação. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000100013 |
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| Almeida,Anna Christina; Sobrinho,Eliane Macedo; Pinho,Lucineia de; Souza,Patrícia Nery Silva; Martins,Ernane Ronie; Duarte,Eduardo Robson; Santos,Hércules Otacílio; Brandi,Igor Viana; Cangussu,Alex Sander; Costa,João Paulo Ramos. |
| O estudo objetivou realizar ensaio toxicológico pré-clínico inicial para investigar a toxicidade das folhas de alecrim-pimenta (Lippia sidoides Cham.), aroeira (Myracrodruon urundeuva Fr. All.) e barbatimão [Stryphnodendron adstringens (Mart.) Coville] e do farelo da casca de pequi (Caryocar brasiliense Camb.), por meio da determinação da dose letal 50% (DL50). Na investigação da DL50, foram utilizados grupos de camundongos Swiss de mesmo sexo (n=150, sendo 30 animais por tratamento) inoculados, por via intraperitoneal, com diluições seriadas do extrato hidroalcoólico das folhas de alecrim, aroeira e barbatimão e do farelo da casca de pequi. Após a inoculação, os animais foram observados por um período de 14 dias, para determinar a quantidade de mortos,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intoxicação; Plantas medicinais; Camundongos; Intraperitoneal; Lippia sidoides; Myracrodruon urundeuva; Stryphnodendron adstringens Caryocar brasiliense. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000100034 |
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| Alvarenga,Ivan Caldeira Almeida; Valadares,Rafael Vasconcelos; Martins,Ernane Ronie; Oliveira,Flávio Gonçalves; Figueiredo,Lourdes Silva de; Kobayashi,Mauro Koji. |
| The objective of this work was to assess the effect of different periods of water stress before harvest of pepper-rosmarin (Lippia sidoides) on the contents of essential oil and flavonoids. The experiment was carried out during 270 days of cultivation, with drainage lysimeters, in a completely randomized block design with five treatments: 0, 2, 4, 6, and 8 days of water suppression before harvest, with four replicates. Fresh and dry matter yield, essential oil content, total flavonoids content, and water potential and temperature of leaves were determined. There was a decrease of approximately 50% in oil content and of 60% in total flavonoid content with the reduction of leaf water potential in 0.3 MPa. Essential oil is more sensitive to water stress than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia sidoides; Essential oil; Flavonoids; Leaf water potential; Medicinal plant; Water stress. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000700005 |
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