Contact and Repellent Activities of the Essential Oil from Juniperus formosana against Two Stored Product Insects
| Autor: | Chun-Xue You, Cheng-Fang Wang, Junyu Liang, Wen-Juan Zhang, Shu-Shan Du, Zhu-Feng Geng, Shan-Shan Guo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Insecticides Pharmaceutical Science 01 natural sciences Analytical Chemistry law.invention Terpene DEET chemistry.chemical_compound law Drug Discovery Food science contact toxicity Bicyclic Monoterpenes Tribolium biology Liposcelis bostrychophila Chemistry (miscellaneous) Molecular Medicine Food storage Cyclohexane Monoterpenes Article lcsh:QD241-441 Tribolium castaneum lcsh:Organic chemistry Botany Cyclohexenes Oils Volatile Animals Humans Physical and Theoretical Chemistry Essential oil Limonene Juniperus formosana repellency Terpenes Organic Chemistry biology.organism_classification Plant Leaves 010602 entomology chemistry Food Storage Insect Repellents Juniperus Monoterpenes 010606 plant biology & botany |
| Zdroj: | Molecules, Vol 21, Iss 4, p 504 (2016) Molecules Molecules; Volume 21; Issue 4; Pages: 504 |
| ISSN: | 1420-3049 |
| Popis: | The chemical composition of the essential oil from Juniperus formosana leaves and its contact and repellent activities against Tribolium castaneum and Liposcelis bostrychophila adults were investigated. The essential oil of J. formosana leaves was obtained by hydrodistillation and analyzed by GC-MS. A total of 28 components were identified and the main compounds in the essential oil were α-pinene (21.66%), 4-terpineol (11.25%), limonene (11.00%) and β-phellandrene (6.63%). The constituents α-pinene, 4-terpineol and d-limonene were isolated from the essential oil. It was found that the essential oil exhibited contact activity against T. castaneum and L. bostrychophila adults (LD50 = 29.14 μg/adult and 81.50 µg/cm2, respectively). The compound 4-terpineol exhibited the strongest contact activity (LD50 = 7.65 μg/adult). In addition, data showed that at 78.63 nL/cm2, the essential oil and the three isolated compounds strongly repelled T. castaneum adults. The compounds α-pinene and d-limonene reached the same level (Class V) of repellency as DEET (p = 0.396 and 0.664) against L. bostrychophila at 63.17 nL/cm2 after 2 h treatment. The results indicate that the essential oil and the isolated compounds have potential to be developed into natural insecticides and repellents to control insects in stored products. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|