Comparison of Fractionation Techniques of CO2 Extracts from Eucalyptus Globulus - Composition and Insecticidal Activity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F15%3A00440668" target="_blank" >RIV/67985858:_____/15:00440668 - isvavai.cz</a>
Alternative codes found
RIV/00027006:_____/15:00003195
Result on the web
<a href="http://dx.doi.org/10.1016/j.supflu.2014.12.002" target="_blank" >http://dx.doi.org/10.1016/j.supflu.2014.12.002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.supflu.2014.12.002" target="_blank" >10.1016/j.supflu.2014.12.002</a>

Result language
angličtina
Original language name
Comparison of Fractionation Techniques of CO2 Extracts from Eucalyptus Globulus - Composition and Insecticidal Activity
Original language description
Supercritical fluid extraction combined with two fractionation methods, sorption and series of separators, was applied on Eucalyptus globulus leaves in order to maximize the insecticidal activity of extracts against Leptinotarasa decemlineata larvae. Themajor compounds in the essential oil isolated with the yield 26.7 mg/g were 1,8-cineole (42.6 wt%), -pinene (10.7 wt%) and globulol (5.9 wt%). The concentration of total volatiles in the extracts varied from 2.8 to 59.5 wt%, depending on the extractionand fractionation conditions. The extract obtained at 50 °C and 9 MPa exhibited the highest acute toxicity with LD50 = 38 ?g. ScCO2 extracts exhibited several times stronger insecticidal activity in terms of chronic toxicity, antifeedant activity and growth inhibition than essential oil. Increase in the concentration of volatiles in isolates resulted into increase of chronic toxicity and antifeedant activity while growth inhibition decreased.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Project
<a href="/en/project/TA01010578" target="_blank" >TA01010578: Research and development of new products for complex protection of plants based on natural substances obtained using supercritical fluid extraction and hydrodistillation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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