Seasonal variability of the antimicrobial activity of the essential oil of Lippia alba

Machado, T. F.; Pereira, R. de C. A.; Batista, Valéria Chaves Vasconcelos

doi:10.1590/s1806-66902014000300011

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…In the present study, 82 species were mentioned with medicinal potential, which are distributed in 52 families ( The herb cidreira possesses essential oil with wide spectrum of antimicrobian activity, being this prepared herb under infusion form using leaves for therapeutic ends [8]. Corroborating [9] the study, it was observed that the most mentioned species of medicinal plants as remedies in Blumenau, Santa Catarinathe were: the herb -cidreira, the chamomile, the mint and the lemon.…”

Section: Resultsmentioning

confidence: 68%

Ethnoknowledge: Use of Medicinal Plants in Communities

Bandeira¹,

Sousa

Santos

et al. 2018

JEAI

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Aim: To evaluate the traditional knowledge as for the use of medicinal plants in the municipal districts that integrate the 14th Administrative Area of the Company of Technical Support and Rural Extension of the State of Paraíba. Methodology: This study was promoted by a field research, of descriptive character with a qualitative approach. As instrument of data collection, a questionnaire was previously structure, containing objective and subjective subjects. 30 people were interviewed in the rural area and in the headquarters of each municipal district, in other words, in the nine municipal districts, totaling, like this, 315 interviewees. The data were analyzed as to the relative frequency of the medicinal plants being calculated in the Microsoft Excel Program.

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Section: Resultsmentioning

confidence: 68%

Ethnoknowledge: Use of Medicinal Plants in Communities

Bandeira¹,

Sousa

Santos

et al. 2018

JEAI

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“…Lippia alba (Mill.) N. E. Brown (Verbenaceae) is widely available in South America and often used in folk medicine because of its analgesic, antiinflammatory, antipyretic, anaesthetic, sedative and expectorant properties (Hohlenwerger et al., , ; Machado, Pereira, & Batista, ; Sena et al., ). In addition, a great advantage in the use of this species is related to its ease of adaptation to different soils and its rapid growth (Yamamoto et al., ), which could contribute to the elaboration of products, such as essential oils.…”

Section: Introductionmentioning

confidence: 99%

Dietary addition of the essential oil from Lippia alba to Nile tilapia and its effect after inoculation with Aeromonas spp.

Souza

Costa

et al. 2018

Aquacult Nutr

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The objective of this study was to evaluate the effect of dietary addition of the essential oil from Lippia alba (EOLA) on growth performance, biochemical and haematological variables and survival after Aeromonas spp. infection of Nile tilapia juveniles (Oreochromis niloticus). Five diets were evaluated with increasing levels of EOLA (0.0 control; 0.25; 0.50; 1.0; and 2.0 ml/kg diet). After 45 days of feeding, the fish were infected with Aeromonas spp. followed by a 14-day period of observation. There was no mortality during growth assessment. The addition of 2.0 ml EOLA/kg diet improved feed conversion ratio and condition factor and increased lysozyme activity and haematocrit (Hct), and decreased plasma globulin levels compared to the control group. The survival of fish infected with Aeromonas spp. was higher in those fed with 2.0 ml EOLA/kg diet than in fish fed with 0.0-0.5 ml EOLA/kg diet. We concluded that the inclusion of 2.0 ml EOLA/kg diet is recommended for Nile tilapia juveniles, because it improved feed conversion, Hct and immunological activity, did not provoke metabolic changes, and increased survival after Aeromonas spp. infection. K E Y W O R D S feed conversion ratio, haematocrit, infection, lysozyme activity, Oreochromis niloticus, Survival S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section at the end of the article. How to cite this article: de Souza RC, de Souza EM, da Costa MM, Melo JFB, Baldisserotto B, Copatti CE. Dietary addition of the essential oil from Lippia alba to Nile tilapia and its effect after inoculation with Aeromonas spp.. Aquacult Nutr.

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“…In addition to these volatile compounds, other monoterpenes and phenylpropanoids have been described as main metabolites in the essential oils from L. alba : linalool, β-caryophyllene, tagetone, myrcene, γ-terpinene, camphor, estragole, eucalyptol, camphor, limonene, and piperitone [ 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. This variability has been explained due to factors such as seasons, flowering time, plant age, amount of precipitation, geographic and climatic factors [ 8 , 12 , 19 ], as well as the part of the studied plant, extraction method, soil characteristics, and the genetic variability of these plants [ 12 , 20 , 21 , 22 , 23 ]. These differences may lead to a different oil composition and, therefore, to different pharmacological effects [ 9 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Cytotoxic and Antimicrobial Constituents from the Essential Oil of Lippia alba (Verbenaceae)

et al. 2016

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Backgroud: Lippia alba (Verbenaceae) is a plant widely used in folk medicine to treat various diseases. The present work deals with the chemical composition of the crude essential oil extracted from leaves of L. alba and evaluation of its antimicrobial and cytotoxic activities. Methods: Leaves of L. alba were extracted by hydrodistillation and analyzed by gas chromatography/mass spectrometry (GC/MS) as well as by nuclear magnetic resonance (NMR) spectroscopy. Cytotoxic and antimicrobial activities of crude essential oil were evaluated in vitro using MTT and broth microdilution assays, respectively. Results: Chemical analysis afforded the identification of 39 substances corresponding to 99.45% of the total oil composition. Concerning the main compounds, monoterpenes nerol/geraniol and citral correspond to approximately 50% of crude oil. The cytotoxic activity of obtained essential oil against several tumor cell lines showed IC50 values ranging from 45 to 64 µg/mL for B16F10Nex2 (murine melanoma) and A549 (human lung adenocarcinoma). In the antimicrobial assay, was observed that all tested yeast strains, except C. albicans, were sensitive to crude essential oil. MIC values were two to four-folds lower than those determined to bacterial strains. Conclusion: Analysis of chemical composition of essential oils from leaves of L. alba suggested a new chemotype nerol/geraniol and citral. Based in biological evidences, a possible application for studied oil as an antifungal in medicine, as well as in agriculture, is described.

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Seasonal variability of the antimicrobial activity of the essential oil of Lippia alba

Cited by 6 publications

References 8 publications

Ethnoknowledge: Use of Medicinal Plants in Communities

Ethnoknowledge: Use of Medicinal Plants in Communities

Dietary addition of the essential oil from Lippia alba to Nile tilapia and its effect after inoculation with Aeromonas spp.

Cytotoxic and Antimicrobial Constituents from the Essential Oil of Lippia alba (Verbenaceae)

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