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Efficacy of Bornyl Acetate and Camphene From Valeriana Officinalis Essential Oil Against Two Storage Insects

Efficacy of Bornyl Acetate and Camphene From Valeriana Officinalis Essential Oil Against Two Storage Insects

Yi-Xi Feng, Yang Wang, Zhen-Yang Chen, Shan-Shan Guo, Chun-Xue You, Shu-Shan Du

Environ Sci Pollut Res Int. 2019 Jun;26(16):16157-16165.

PMID: 30972667

Abstract:

The essential oil was extracted from the roots of Valeriana officinalis L. by hydrodistillation. The qualitative and quantitative analysis of its chemical constituents was conducted on GC-MS and GC-FID in this study. Seventeen compounds were detected and the major constituents included bornyl acetate (48.2%) and camphene (13.8%). The toxic and repellent effects of the essential oil and its two major constituents were evaluated on Liposcelis bostrychophila and Tribolium castaneum. The results of bioassays indicated that the essential oil showed the promising fumigant and contact toxicity against L. bostrychophila (LC50 = 2.8 mg/L air and LD50 = 50.9 μg/cm2, respectively) and the notable contact effect on T. castaneum (LD50 = 10.0 μg/adult). Meanwhile, the essential oil showed comparable repellent effect on T. castaneum at all testing concentrations. Bornyl acetate and camphene also exhibited strong fumigant and contact toxicity against both species of pests (LC50 = 1.1, 10.1 mg/L air and LD50 = 32.9, 701.3 μg/cm2 for L. bostrychophila; > 126.3, 4.1 mg/L air, and 66.0, 21.6 μg/adult for T. castaneum). Bornyl acetate and camphene showed moderate repellent effect on T. castaneum and conversely showed attractant effect on L. bostrychophila. This work highlights the insecticidal potential of V. officinalis, which has been noted as a traditional medicinal plant.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP5655618	(−)-Bornyl acetate		5655-61-8	Price

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