| Autor: |
HAI-PING CHEN, KAI YANG, CHUN-XUE YOU, LI-SHI ZHENG, QIAN CAI, CHENG-FANG WANG, SHU-SHAN DU |
| Předmět: |
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| Zdroj: |
Journal of Food Processing & Preservation; Dec2015, Vol. 39 Issue 6, p1913-1918, 6p |
| Abstrakt: |
The essential oil of Atractylodes chinensis (Compositae) rhizomes possesses contact toxicity against the adults of the booklouse, Liposcelis bostrychophila (Psocoptera: Liposcelididae), with an LD50 value of 104.70 μg/cm². Dried A. chinensis rhizomes were extracted using supercritical CO2 fluid extraction, and chromatographic separation on repeated silica gel columns led to the isolation of atractylodin, atractylodinol, β-eudesmol and atractylenolide III. Atractylodin (LD50 = 9.89 μg/cm2) demonstrated stronger contact toxicity against this pest than the other three compounds (LD50 ≥ 70.60 μg/cm²) and was twice as active the positive control (pyrethrum: LD50 = 18.99 μg/cm2). At a dose of 31.58 μg/cm², the essential oil, atractylodin and β-eudesmol strongly repelled against L. bostrychophila (92, 88 and 86%, respectively) for 2 h after exposure. The results indicate that atractylodin has the potential to be developed as natural insecticide and repellent for the control of L. bostrychophila. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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