Essential oils of <i>Lippia grandis</i> Schau.

Maia, José Guilherme S.; Taveira, Francisca S.N.; Andrade, Eloísa Helena A.; Silva, Milton Hélio L. da; Zoghbi, Maria das Graças B.

doi:10.1002/ffj.1241

Cited by 15 publications

(6 citation statements)

References 12 publications

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“…The main components were thymol (45.8%), p-cymene (14.3%), γ-terpinene (10.5%), carvacrol (9.9%) and thymol methyl ether (4.8%), totalizing 85%. Two chemotypes were previously described for L. grandis: thymol and 1,8-cineol types (Silva et al, 1973;Maia et al, 2003). We have observed that the main components of the oils of Lippia species from the Amazon have varied with the part of plant, season, and collection site and oil percentage.…”

Section: Oil-compositionsupporting

confidence: 51%

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

Damasceno

Silva²,

Andrade

et al. 2011

Rev. bras. farmacogn.

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Abstract:The 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.

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Section: Oil-compositionsupporting

confidence: 51%

“…Previously, we reported the oil composition of some natural varieties of L. grandis occurring at different localities and soil types of the Amazon. The oils showed distinct chromatographic profiles, indicating the presence of chemoypes thymol and 1,8-cineole (Silva et al, 1973;Maia et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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

Damasceno

Silva²,

Andrade

et al. 2011

Rev. bras. farmacogn.

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“…Br collected in Pará and Ceará with citral, carvone and 1,8-cineole types [ 29 , 30 ]; Lippia lupulina Cham. existing in Mato Grosso state with terpinen-4-ol, 1,8-cineole + β-caryophyllene, and germacrene D + β-caryophyllene + bicyclogermacrene types [ 31 ]; Lippia grandis Schauer with occurrence in all Amazon Region with thymol, 1,8-cineole and carvacrol types [ 32 , 33 ]; and Lippia glandulosa Schauer that grows in Roraima with thymol and β-caryophyllene types [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial and Seasonal Evaluation of the Carvacrol-Chemotype Oil from Lippia origanoides Kunth.

et al. 2015

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This study evaluated the influence of seasonal variation on the yield and composition of essential oil of Lippia origanoides occurring in the Middle Rio Amazonas, Brazil, and the impact on its antimicrobial potential. The average oil yield was 1.7% ± 0.2% in the rainy season and 1.6% ± 0.3% in the dry season. Some correlations with climatic parameters were observed. The major components were carvacrol (rainy, 43.5% ± 1.9%; dry, 41.4% ± 2.04%), thymol (rainy, 10.7% ± 1.1%; dry, 10.6% ± 0.9%), p-cymene (rainy, 9.8% ± 0.7%; dry, 10.0% ± 1.4%) and p-methoxythymol (rainy, 9.6% ± 0.8%; dry, 10.4% ± 1.4%). It was found that the antibacterial activity of L. origanoides against Staphylococcus aureus and Escherichia coli was little influenced by the changes in oil composition due to seasonal variation. Against S. aureus, the oil Minimum Inhibitory Concentration (MIC) value was 1.25 μL/mL over ten months. Against E. coli, the oil MIC values ranged from 0.15 μL/mL to 0.31 μL/mL in different months of the year. The Minimum Bactericidal Concentration (MBC) value was 2.5 μL/mL against S. aureus and 1.25 μL/mL against E. coli. The results suggest that the antimicrobial activity identified in the oil remain unchanged for the full year, allowing its medicinal use without any risk of loss or absence of the active principles of the plant.

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“…61 The oil was tested against the protozoan Tripanossoma cruzii, responsible for Chagas disease, inhibiting 100% the growth of these pathogens, at low concentrations. The ethyl acetate extract showed strong antioxidant activity supported by high levels of phenolic compounds found in the plant.…”

Section: Results and Discussion The Inventory Of The Aromatic Floramentioning

confidence: 99%

Database of the Amazon aromatic plants and their essential oils

Maia¹,

Andrade²

2009

Quím. Nova

108

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The aromatic flora of the Amazon has been inventoried for 30 years. In this sense, were made over 500 field trips to collect over 2500 plants and to obtain more than 2000 essential oils and aroma concentrates, all of them submitted to GC and GC-MS. This work led to the creation of a database for the aromatic plants of the Amazon, which catalogs general information about 1250 specimens. The database has allowed the publication of the chemical composition of the oils and aromas of more than 350 species, associated with a larger number of chemical types. The essential oils of many species offer optimum conditions for economic exploitation and use in national and international market of fragrances, cosmetics, agricultural and household pesticides

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Essential oils of Lippia grandis Schau.

Abstract: The essential oils of leaves and fine stems of five specimens of Lippia grandis collected at different places in the Amazon were analysed by GC-MS. These oils presented two distint chemical profiles.

Cited by 15 publications

References 12 publications

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

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

Antimicrobial and Seasonal Evaluation of the Carvacrol-Chemotype Oil from Lippia origanoides Kunth.

Database of the Amazon aromatic plants and their essential oils

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