Repellent studies with Aedes aegypti mosquitoes and human olfactory tests on 19 essential oils from Corsica, France

Drapeau, J. and Froehler, C. and Touraud, D. and Kroeckel, U. and Geier, M. and Rose, A. and Kunz, W. (2009) Repellent studies with Aedes aegypti mosquitoes and human olfactory tests on 19 essential oils from Corsica, France. FLAVOUR AND FRAGRANCE JOURNAL, 24 (4). pp. 160-169. ISSN 0882-5734, 1099-1026

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Abstract

In order to reduce the risk of getting infected with any epidemic disease transmitted by mosquitoes, repellent products are often used to protect populations at risk. The repellent potential of 19 essential oils from the island of Corsica, France, was evaluated in a bio-assay with the mosquito Aedes aegypti, in order to assess the 'space repellent' properties of these oils. Lavendula stoechas, Helichrysum italicum (leaves) and Laurus nobilis oils showed a capability of reducing the attractivity of a human finger for yellow fever mosquitoes in a Y-tube olfactometer. In addition to the behavioural studies on mosquitoes, two tests on the olfactory perception of these 19 oils were performed, involving 25 female and 25 male human volunteers. The aspects studied were the 'hedonic dimension' of these oils and their acceptance as a final fragrance for a repellent formulation. The experiments yielded promising results concerning both aspects for three oils, from Calamintha nepeta, Laurus nobilis and Rosmarinus officinalis, with minor differences between male and female participants. Laurus nobilis oil was the only oil tested fulfilling both properties: a spatial repellent effect on Aedes aegypti and acceptance by the volunteers for its integration in a repellent product. Thermogravimetric analysis showed that Calamintha nepeta oil has a slower evaporation rate in comparison to the Laurus nobilis and Rosmarinus officinalis oils. Copyright (C) 2009 John Wiley & Sons, Ltd.

Item Type: Article
Uncontrolled Keywords: CHIKUNGUNYA; VARIABILITY; ANOPHELES; EPIDEMIC; DEET; repellent; Aedes aegypti; essential oils; olfactory; hedonic property; Laurus nobilis
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Sep 2020 04:48
Last Modified: 14 Sep 2020 04:48
URI: https://pred.uni-regensburg.de/id/eprint/28742

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