Antioxidant capacity and larvicidal activity of essential oil and extracts from Lippia grandis

dc.creatorDAMASCENO, Evelyn Ivana Trindade
dc.creatorSILVA, Joyce Kelly do Rosário da
dc.creatorANDRADE, Eloisa Helena de Aguiar
dc.creatorSOUSA, Pergentino José da Cunha
dc.creatorMAIA, José Guilherme Soares
dc.date.accessioned2013-01-25T14:58:49Z
dc.date.available2013-01-25T14:58:49Z
dc.date.issued2011-02
dc.description.abstractThe leaves and thin branches of Lippia grandis Schauer, Verbenaceae, are used for flavoring of food in the Brazilian Amazon, as substitute for oregano. In this study the constituents of the essential oil were identified and the antioxidant capacity and larvicidal activity of the oil and methanol extract and its sub-fractions were evaluated. A sensory evaluation was determined in view of absence of toxicity. The oil showed a yield of 2.1% and its main constituents were thymol (45.8%), p-cymene (14.3%), γ-terpinene (10.5%), carvacrol (9.9%) and thymol methyl ether (4.8%), totalizing 85%. The DPPH radical scavenging activity showed values for the EC50 between 9.0 and 130.5 µg mL-1 and the TEAC/ABTS values varied from 131.1 to 336.0 mg TE/g, indicating significant antioxidant activity for the plant. The total phenolic content ranged from 223.0 to 761.4 mg GAE/g, contributing to the antioxidant activity observed. The crude extracts inhibited the bleaching of β-carotene and the oil showed the greatest inhibition (42.5%). The oil (LgO, 7.6±2.4 µg mL-1) showed strong larvicidal activity against the brine shrimp bioassay. The sensory evaluation was highly satisfactory in comparison to oregano. The results are very promising for the use of L. grandis in seasoning and antioxidant products.pt_BR
dc.identifier.citationDAMASCENO, Evelyn Ivana T. et al. Antioxidant capacity and larvicidal activity of essential oil and extracts from Lippia grandis. Revista Brasileira de Farmacognosia, Curitiba, v. 21, n. 1, p. 78-85, jan./fev. 2011. Disponível em: <http://www.scielo.br/pdf/rbfar/v21n1/aop1511.pdf>. Acesso em: 22 jan. 2013. <http://dx.doi.org/10.1590/S0102-695X2011005000013>.pt_BR
dc.identifier.issn0102-695X
dc.identifier.urihttps://repositorio.ufpa.br/handle/2011/3383
dc.language.isoengpt_BR
dc.rightsAcesso Aberto
dc.subjectPlantas aromáticaspt_BR
dc.subjectLippia grandispt_BR
dc.subjectCapacidade antioxidantept_BR
dc.subjectAtividade larvicidapt_BR
dc.subjectErva-do-Marajópt_BR
dc.subjectAmazônia brasileirapt_BR
dc.titleAntioxidant capacity and larvicidal activity of essential oil and extracts from Lippia grandispt_BR
dc.typeArtigo de Periódicopt_BR

Arquivo(s)

Pacote Original

Agora exibindo 1 - 1 de 1
Carregando...
Imagem de Miniatura
Nome:
Artigo_AntioxidantCapacityLarvicidal.pdf
Tamanho:
730.78 KB
Formato:
Adobe Portable Document Format

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.95 KB
Formato:
Item-specific license agreed upon to submission
Descrição: