Essential oil from Pterodon emarginatus as a promising natural raw material for larvicidal nanoemulsions against a tropical disease vector

Oliveira, Anna Eliza Maciel de Faria Mota; Bezerra, Desirane C.; Duarte, Jonatas Lobato; Cruz, Rodrigo Alves Soares; Souto, Raimundo Nonato Picanço; Ferreira, Ricardo M. A.; Nogueira, Juliana; Conceição, Edemilson Cardoso da; Leitão, Suzana Guimarães; Bizzo, H. R.; Gama, Paola E.; Carvalho, José Carlos Tavares; Fernandes, Caio P.

doi:10.1016/j.scp.2017.06.001

Cited by 30 publications

(15 citation statements)

References 56 publications

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“…Despite some studies aiming to generate essential oil-based nanoemulsions focus on high energy methods to generate small size droplets, the utilization of low energy methods that makes use the physicochemical properties of the system are also a good alternative [ 23 , 24 , 25 ] and should be encouraged, due to the reduced costs of the process. The utilization of non-heating methods is desirable, due to the volatile nature of the compounds of an essential oil [ 27 , 28 ]. Moreover, a solvent-free preparation would lead to less impairment to the environment, being in accordance with a sustainable and eco-friendly approach.…”

Section: Discussionmentioning

confidence: 99%

“…rHLB can be predicted based on a series of emulsions prepared with known ratios of a pair of two non-ionic surfactants. It is also a satisfactory strategy to achieve low mean droplet size and its determination has been used to develop larvicidal nanoemulsions [ 23 , 24 , 28 ].…”

Section: Discussionmentioning

confidence: 99%

“…The decrease of 34% on the LC 50 values of B. reticularia nanoemulsion as a function of time observed in this study is in accordance with literature data. Oliveira and coworkers [ 28 ] showed 42% of reduction on LC 50 from 24 to 48 h (371.6 to 213.7 μg mL −1 ) after a larvicidal assay with Pterodon emarginatus essential oil-based nanoemulsion against A. aegypti larvae. d -limonene nanoemulsions also showed a decrease on its LC 50 values (11%) from 24 h to 48 h in this study, which is in accordance with the literature.…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, several studies have been carried out in order to developed new larvicidal formulations using nanotechnology. Nanostructured products prepared with natural herbal oils [ 23 , 24 , 25 ], including essential oils [ 26 , 27 , 28 , 29 ], are considered an excellent eco-friendly option when compared to synthetic pesticides.…”

Section: Introductionmentioning

confidence: 99%

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Baccharis reticularia DC. and Limonene Nanoemulsions: Promising Larvicidal Agents for Aedes aegypti (Diptera: Culicidae) Control

et al. 2017

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Baccharis reticularia DC. is a plant species from the Asteraceae family that is endemic to Brazil. Despite the great importance of Baccharis genus, no study has been carried out regarding either the phytochemical composition of B. reticularia or the evaluation of its larvicidal potential. Considering the intrinsic immiscibility of essential oils, this study shows larvicidal nanoemulsions containing the B. reticularia phytochemically characterized essential oil and its main constituent against Aedes aegypti. The major compound found was d-limonene (25.7%). The essential oil inhibited the acetylcholinesterase, one of the main targets of insecticides. The required hydrophile-lipophile balance of both nanoemulsions was 15.0. The mean droplet sizes were around 90.0 nm, and no major alterations were observed after 24 h of preparation for both formulations. After 48 h of treatment, the estimated LC50 values were 118.94 μg mL−1 and 81.19 μg mL−1 for B. reticularia essential oil and d-limonene nanoemulsions, respectively. Morphological alterations evidenced by scanning electron micrography were observed on the larvae treated with the d-limonene nanoemulsion. This paper demonstrated a simple and ecofriendly method for obtaining B. reticularia essential oil and d-limonene aqueous nanoemulsions by a non-heating and solvent-free method, as promising alternatives for Aedes aegypti control.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Baccharis reticularia DC. and Limonene Nanoemulsions: Promising Larvicidal Agents for Aedes aegypti (Diptera: Culicidae) Control

et al. 2017

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“…This characteristic of natural products is important in the search for new environmentally safe phytopesticides for the control of immature stages of Aedes [11]. Thus, resistance of these disease vectors to current pesticides is a growing problem, and products from plants are eco-sustainable alternatives in this respect [12,13]. Many plant products have been evaluated against Ae.…”

Section: Introductionmentioning

confidence: 99%

Larvicidal and Enzymatic Inhibition Effects of Annona Muricata Seed Extract and Main Constituent Annonacin against Aedes Aegypti and Aedes Albopictus (Diptera: Culicidae)

et al. 2019

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The mosquitoes Aedes aegypti and Aedes albopictus are vectors of arboviruses that cause dengue, zika and chikungunya. Bioactive compounds from plants are environmentally sustainable alternatives to control these vectors and thus the arboviruses transmitted by them. The present study evaluated the larvicidal activity of an acetogenin-rich fraction (ACERF) and its main constituent annonacin obtained from Annona muricata seeds on Ae. aegypti and Ae. albopictus. The larvicidal assays were performed using different concentrations to calculate the LC50 and LC90 values observed 24 h after exposure to the treatment. Annonacin was more active against Ae. aegypti (LC50 2.65 μg·mL−1) in comparison with Ae. albopictus (LC50 8.34 μg·mL−1). In contrast, the acetogenin-rich fraction was more active against Ae. albopictus (LC50 3.41 μg·mL−1) than Ae. aegypti (LC50 12.41 μg·mL−1). ACERF and annonacin treated larvae of Ae. aegypti and Ae. albopictus showed significant differences in the inhibition of their metabolic enzymes when compared to untreated larvae. The results demonstrate the relevant larvicidal action of the acetogenin-rich fraction and annonacin showing the potential to develop new products for the control of Ae. aegypti and Ae. albopictus.

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Nanoemulsions of Acai Oil: Physicochemical Characterization for the Topical Delivery of Antifungal Drugs

et al. 2020

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Nanoemulsion‐based acai oil was obtained by the phase inversion method using two nonionic surfactants, Ceteareth‐20 (Brij™ CS20) and polyoxyethylene‐hydrogenated castor oil (Croduret™ 50), with the concentration of each surfactant varying from 7 to 10 %. The formulation with 10 % Brij CS20 presented the best values for droplet size, zeta potential, and polydispersity index (PDI). Ketoconazole was incorporated into this formulation, with an encapsulation efficiency of 98.31 % and equally good zeta potential, droplet size, and PDI, and spherical shape when observed by transmission electron microscopy. Overall, nanoemulsions of acai oil proved to be a good vehicle for imidazole antifungals such as ketoconazole.

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Essential oil from Pterodon emarginatus as a promising natural raw material for larvicidal nanoemulsions against a tropical disease vector

Cited by 30 publications

References 56 publications

Baccharis reticularia DC. and Limonene Nanoemulsions: Promising Larvicidal Agents for Aedes aegypti (Diptera: Culicidae) Control

Baccharis reticularia DC. and Limonene Nanoemulsions: Promising Larvicidal Agents for Aedes aegypti (Diptera: Culicidae) Control

Larvicidal and Enzymatic Inhibition Effects of Annona Muricata Seed Extract and Main Constituent Annonacin against Aedes Aegypti and Aedes Albopictus (Diptera: Culicidae)

Nanoemulsions of Acai Oil: Physicochemical Characterization for the Topical Delivery of Antifungal Drugs

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