Valorization of Volatile Oils and Some Crude Extracts from the Tunisian Plants Juniperus communis and Origanum majorana for the Control of Hyalomma scupense (Acari: Ixodidae)

Alimi, Dhouha; Hajri, Azhar; Jallouli, Sélim; Sebaï, Hichem

doi:10.1007/s12649-022-01767-0

Cited by 2 publications

(2 citation statements)

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“…Juniperus essential oils have been described as ixodicidal against several tick species, 53,54 including J. thurifera var. Africana (rich in sabinene, α-pinene, and γ-terpinene) against H. aegyptium 17 and J. phoenica (rich in α-terpinyl acetate, α-pinene, and germacene D) against Ixodes ricinus.…”

Section: Resultsmentioning

confidence: 99%

“…essential oils, including J. phoenica (rich in α-pinene) against Botrytis cinerea mycelium 50 and hexane, ethanol, and methanol extracts (rich in cedrol, thujopsene, and widdrol) active on wood-rot fungi. 51,52 Juniperus essential oils have been described as ixodicidal against several tick species, 53,54 including J. thurifera var. Africana (rich in sabinene, α-pinene, and γ-terpinene) against H. aegyptium 17 and J. phoenica (rich in α-terpinyl acetate, α-pinene, and germacene D) against Ixodes ricinus.…”

Section: Biological Activitymentioning

confidence: 99%

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Valorization of the Sabinas Forest Waste (Juniperus phoenicea and Juniperus thurifera) as Source of Biopesticides

Galisteo,

Zaher,

Lopez-Menchero

et al. 2024

Natural Product Communications

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Objectives: The potential forestry use of Juniperus phoenicea and Juniperus thurifera pruning woods is studied by analyzing the composition of the woods and testing the biological activities of the corresponding components with the ultimate target of finding new biopesticides. Methods: The air-dried wood from each plant was crushed and subjected to hydrodistillation, and the residue was extracted with a Soxhlet apparatus using different solvents. The corresponding extracts were fractionated, and their composition were studied by gas chromatography-mass spectrometry and nuclear magnetic resonance techniques. The ixodicidal and antifungal activities of the different samples obtained were evaluated. Results: The fraction oxygenated of the essential oil from both J. thurifera (cedrol >60%) and J. phoenicea shows a remarkable bioactivity as antitick with EC50 values of 3.4 μg/mg and 10 μg/mg, respectively. Cedrol and methyl hinokiate, present in the hexane extract J. thurifera, show a potent antifungal effect against Aspergillus niger with EC50 values of 45.99 and 52.23 μg/mL, respectively. Conclusions: Pruning woods from these species proved to be renewable and easily accessible sources of bioactive natural products such as cedrol, thujopsene, nootkatone, and totarol.

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Section: Resultsmentioning

confidence: 99%