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Essential oils of aromatic Egyptian plants repel nymphs of the tick Ixodes ricinus (Acari: Ixodidae)
KTH, Skolan för kemivetenskap (CHE), Kemi. Uppsala University, Sweden. (Ecological Chemistry Group)
KTH, Skolan för kemivetenskap (CHE), Kemi. COMSATS Institute of Information Technology, Pakistan. (Ecological Chemistry Group)
KTH, Skolan för kemivetenskap (CHE), Kemi. Agricultural Research Centre, Egypt. (Ecological Chemistry Group)
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2017 (Engelska)Ingår i: Experimental & applied acarology, ISSN 0168-8162, E-ISSN 1572-9702, Vol. 73, nr 1, s. 139-157Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Due to the role of Ixodes ricinus (L.) (Acari: Ixodidae) in the transmission of many serious pathogens, personal protection against bites of this tick is essential. In the present study the essential oils from 11 aromatic Egyptian plants were isolated and their repellent activity against I. ricinus nymphs was evaluated Three oils (i.e. Conyza dioscoridis L., Artemisia herba-alba Asso and Calendula officinalis L.) elicited high repellent activity in vitro of 94, 84.2 and 82%, respectively. The most active essential oil (C. dioscoridis) was applied in the field at a concentration of 6.5 A mu g/cm(2) and elicited a significant repellent activity against I. ricinus nymphs by 61.1%. The most repellent plants C. dioscoridis, C. officinalis and A. herba-alba yielded essential oils by 0.17, 0.11 and 0.14%, respectively. These oils were further investigated using gas chromatography-mass spectrometry analysis. alpha-Cadinol (10.7%) and hexadecanoic acid (10.5%) were the major components of C. dioscoridis whereas in C. officinalis, alpha-cadinol (21.2%) and carvone (18.2%) were major components. Artemisia herba-alba contained piperitone (26.5%), ethyl cinnamate (9.5%), camphor (7.7%) and hexadecanoic acid (6.9%). Essential oils of these three plants have a potential to be used for personal protection against tick bites.

Ort, förlag, år, upplaga, sidor
Springer, 2017. Vol. 73, nr 1, s. 139-157
Nyckelord [en]
Ixodes ricinus, Essential oil, Chemical composition, Tick repellents, Gas chromatography-mass spectrometry, Egyptian flora
Nationell ämneskategori
Kemiska processer
Identifikatorer
URN: urn:nbn:se:kth:diva-215381DOI: 10.1007/s10493-017-0165-3ISI: 000410912300010Scopus ID: 2-s2.0-85028778852OAI: oai:DiVA.org:kth-215381DiVA, id: diva2:1148481
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QC 20171011

Tillgänglig från: 2017-10-11 Skapad: 2017-10-11 Senast uppdaterad: 2017-10-11Bibliografiskt granskad

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El-Seedi, Hesham R.Azeem, MuhammadKhalil, Nasr S.Pålsson, KatinkaBorg-Karlson, Anna-Karin
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