Insecticidal efficacy of the essential oil of jambú (Acmella oleracea (L.) R.K. Jansen) cultivated in central Italy against filariasis mosquito vectors, houseflies and moth pests

Benelli, Giovanni; Pavela, Roman; Drenaggi, Ettore; Maggi, Filippo

doi:10.1016/j.jep.2018.08.030

Cited by 50 publications

(31 citation statements)

References 76 publications

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“…Air-dried leaves (420 g) of O. syriacum were manually reduced into small pieces and then inserted into a 10 L flask filled with 6 L of distilled water and subjected to hydrodistillation using a Clevenger-type apparatus for 3 h. This process yielded 4.3% (w/w, n = 2, on a dry matter basis) of an orange essential oil. The essential oil was chemically characterized by GC-MS according to Benelli et al [85].…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…C. quinquefasciatus third instar larvae were reared at 25 ± 1 °C, 70% ± 3% R.H. and 16:8 h (L:D) as recently reported by Benelli et al [85]. Then, larvicidal assays were done testing the O. syriacum essential oil in dimethyl sulfoxide (DMSO) following Benelli et al [85]. The O. syriacum essential oil and its major constituent, carvacrol, were tested at concentrations of 10, 20, 30, 40, 50, 60, 80, and 100 mg L −1 to estimate the LC 50(90) values (four groups, each composed of 25 larvae, were tested per concentration).…”

Section: Methodsmentioning

confidence: 99%

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Efficacy of Origanum syriacum Essential Oil against the Mosquito Vector Culex quinquefasciatus and the Gastrointestinal Parasite Anisakis simplex, with Insights on Acetylcholinesterase Inhibition

et al. 2019

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Developing effective and eco-friendly antiparasitic drugs and insecticides is an issue of high importance nowadays. In this study, we evaluated the anthelminthic and insecticidal potential of the leaf essential oil obtained from Origanum syriacum against the L3 larvae of the parasitic nematode Anisakis simplex and larvae and adults of the mosquito Culex quinquefasciatus. Tests on A. simplex were performed by standard larvicidal and penetration assays, while mosquito toxicity was assessed relying on larvicidal, tarsal contact, and fumigation tests. To shed light on the possible mode of action, we analyzed the oil impact as acetylcholinesterase (AChE) inhibitor. This oil was particularly active on L3 larvae of A. simplex, showing a LC50 of 0.087 and 0.067 mg mL−1 after 24 and 48 h treatment, respectively. O. syriacum essential oil was highly effective on both larvae and adults of C. quinquefasciatus, showing LC50 values of 32.4 mg L−1 and 28.1 µg cm−2, respectively. Its main constituent, carvacrol, achieved larvicidal LC50(90) of 29.5 and 39.2 mg L−1, while contact toxicity assays on adults had an LC50(90) of 25.5 and 35.8 µg cm−2, respectively. In fumigation assays, the LC50 was 12.1 µL L−1 after 1 h and decreased to 1.3 µL L−1 in 24 h of exposure. Similarly, the fumigation LC50 of carvacrol was 8.2 µL L−1 after 1 h of exposure, strongly decreasing to 0.8 µL L−1 after 24 h of exposure. These results support the folk usage of Lebanese oregano as an antiparasitic agent, providing new insights about its utilization for developing new effective and eco-friendly nematocidal and insecticidal products.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Efficacy of Origanum syriacum Essential Oil against the Mosquito Vector Culex quinquefasciatus and the Gastrointestinal Parasite Anisakis simplex, with Insights on Acetylcholinesterase Inhibition

et al. 2019

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“…Spilanthol is an isobutylamide compound that promotes a local anesthetic action, possesses anti‐inflammatory and analgesic properties. Spilanthol can also be used to relieve the etiological actions of several cardiovascular pathologies through relaxing the arteries, as well as against gastrointestinal diseases such as mucositis and pancreatitis, skin lesions, and dermatitis (Benelli et al., 2019; Dallazen et al., 2019; Rondanelli et al., 2020). All the health‐related properties associated with A .…”

Section: Introductionmentioning

confidence: 99%

Physicochemical properties and bioactive composition of the lyophilized Acmella oleracea powder

Santos

Soares

Vieira

et al. 2021

J. Food Process. Preserv.

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The aim of this study was to obtain and characterize a lyophilized leaf powder from Acmella oleracea (LPA) as a functional food ingredient. Sorption isotherms of LPA display a monolayer moisture content of 9.1 and 9.3 g H2O 100 g–1 for adsorption and desorption, respectively. The flavonoids, ascorbic acid, and total polyphenols content, were approximately 235 mg 100 g–1, 18 mg 100 g–1, and 2,480 mg GAE 100 g–1, respectively. The antioxidant activity by TEAC showed the greatest value, ~291 mg TE L–1, against DPPH and FRAP assays (p < .05). The FTIR spectrum revealed high intensity bands at 3,400 cm–1 related to vibrations of cellulose and organic acids. The thermo‐behavior showed an initial degradation temperature at 222°C and peak temperature of 278°C. These results indicate great potential of LPA as a natural source of bioactive compounds, which could contribute to its utilization as a functional ingredient in foods. Practical applications The lyophilized leaf powder from Acmella oleracea as a natural source of bioactive compounds could contribute to its utilization as a functional ingredient in foods.

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“…In this context, the essential oils produced by plants may be an alternative to synthetic insecticides. Many studies have been developed in this area 18–24 and the discovery of new sources of essential oil with larvicidal activity is becoming important due to the low yield of this secondary metabolite that is produced by the plants.…”

Section: Introductionmentioning

confidence: 99%

Essential oil from leaves of Eugenia calycina Cambes: Natural larvicidal against Aedes aegypti

Silva

Teixera

et al. 2020

J Sci Food Agric

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BACKGROUNDEugenia calycina is an endemic species in the Brazilian savannah (the Cerrado) and it is threatened with extinction. Several species of Eugenia are used as insecticides or insect repellents. No data are available on the larvicidal activity of E. calycina. The chemical composition of the essential oil (EO) from leaves of Eugenia calycina was analyzed by gas chromatography coupled to mass spectrometry (GC–MS) and the larvicidal activity against Aedes aegypti larvae in the third stage of development was studied.RESULTSOxygenated and non‐oxygenated sesquiterpenes were identified, and the main compounds were bicyclogermacrene, spathulenol, and β‐caryophyllene. The EO was fractionated in a chromatographic column and three compounds were isolated and identified: spathulenol, aromadendrane‐4β,10α‐diol, and 1β‐11‐dihydroxy‐5‐eudesmene. It is the first time that the last two compounds have been identified in E. calycina. The exposure times in the larvicidal test were 24 h and 48 h and the LC50 values obtained were 199.3 and 166.4 μg mL−1. The cytotoxicity of the EO in mammalian cells (HeLa and Vero) was evaluated for 24 and 48 h of incubation. The cytotoxic concentrations of the EO for HeLa and Vero cells (266.8 ± 46.5 and 312.1 ± 42.5 μg mL−1, respectively) in 48 h of exposure were higher than the LC50, showing low cytotoxicity at the concentration exhibiting larvicidal activity, resulting in a positive selectivity index.CONCLUSIONThese results indicate that the EO of E. calycina showed high activity against the A. aegypti larvae but lower cytotoxicity to mammalian cells. The leaves of E. calycina are therefore a very promising source of natural larvicidal products. © 2020 Society of Chemical Industry

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Insecticidal efficacy of the essential oil of jambú (Acmella oleracea (L.) R.K. Jansen) cultivated in central Italy against filariasis mosquito vectors, houseflies and moth pests

Cited by 50 publications

References 76 publications

Efficacy of Origanum syriacum Essential Oil against the Mosquito Vector Culex quinquefasciatus and the Gastrointestinal Parasite Anisakis simplex, with Insights on Acetylcholinesterase Inhibition

Efficacy of Origanum syriacum Essential Oil against the Mosquito Vector Culex quinquefasciatus and the Gastrointestinal Parasite Anisakis simplex, with Insights on Acetylcholinesterase Inhibition

Physicochemical properties and bioactive composition of the lyophilized Acmella oleracea powder

Essential oil from leaves of Eugenia calycina Cambes: Natural larvicidal against Aedes aegypti

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