Insecticidal and mosquito repellent efficacy of the essential oils from stem bark and wood of Hazomalania voyronii
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F20%3A10143950" target="_blank" >RIV/00027006:_____/20:10143950 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41210/20:82395
Result on the web
<a href="https://www.sciencedirect.com/journal/journal-of-ethnopharmacology/vol/248/suppl/C" target="_blank" >https://www.sciencedirect.com/journal/journal-of-ethnopharmacology/vol/248/suppl/C</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jep.2019.112333" target="_blank" >10.1016/j.jep.2019.112333</a>
Alternative languages
Result language
angličtina
Original language name
Insecticidal and mosquito repellent efficacy of the essential oils from stem bark and wood of Hazomalania voyronii
Original language description
Ethnopharmacological relevance: The use of Hazomalania voyronii, popularly known as hazomalana, to repel mosquitoes and resist against insect attacks is handed down from generation to generation in Madagascar. In the present study, we investigated the ability of the essential oils (EOs) obtained from the stem wood, fresh and dry bark of H. voyronii to keep important mosquito vectors (Aedes aegypti and Culex quinquefasciatus) away, as well as their toxicity on three insect species of agricultural and public health importance (Cx. quinquefasciatus, Musca domestica and Spodoptera littoralis). Materials and methods: Hydrodistillation was used to obtain EOs from stem wood, fresh and dry bark. The chemical compositions were achieved by gas chromatography-mass spectrometry (GC-MS). Toxicity assays using stem wood and bark EOs were performed on larvae of Cx. quinquefasciatus and S. littoralis, and adults of M. domestica by WHO and topical application methods, respectively. Mosquito repellent activity of the most effective EO, i.e. the bark one, was determined on human volunteers by arm-in-cage tests, and results were compared with that of the commercial repellent N,N-ddiethyl-m-toluamide (DEET). Results: The H. voyronii EOs were characterized by oxygenated monoterpenes with perilla aldehyde (30.9-47.9%) and 1,8-cineole (19.7-33.2%) as the main constituents. The fresh and dry bark EOs were the most active on Cx. quinquefasciatus and S. littoralis larvae, respectively, with LC50/LD50 of 65.5 mg L-1, and 50.5 mu g larva(-1); the EOs from wood and fresh bark displayed the highest toxicity on M. domestica (LD50 values 60.8 and 65.8 mu g adult(-1), respectively). Repellence assay revealed an almost complete protection (> 80%) from both mosquito species for 30 min when pure fresh bark EO was applied on the volunteers' arm, while DEET 10% repelled > 80% of the mosquitoes up to 120 min from application.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF ETHNOPHARMACOLOGY
ISSN
0378-8741
e-ISSN
—
Volume of the periodical
248
Issue of the periodical within the volume
únor
Country of publishing house
IE - IRELAND
Number of pages
7
Pages from-to
112333
UT code for WoS article
000503312800046
EID of the result in the Scopus database
2-s2.0-85075337603