Bioactivities of patchoulol and phloroacetophenone from Pogostemon cablin essential oil against three insects

The essential oil was obtained from the aerial parts of Pogostemon cablin by hydrodistillation. The chemical compounds of P. cablin essential oil were analyzed by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry. Eight compounds were totally identified and accou...

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Bibliographic Details
Published in:International journal of food properties 2019-01, Vol.22 (1), p.1365-1374
Main Authors: Feng, Yi-Xi, Wang, Yang, You, Chun-Xue, Guo, Shan-Shan, Du, Yue-Shen, Du, Shu-Shan
Format: Article
Language:English
Subjects:
Chromatography
Contact toxicity
Essential oils
Gas chromatography
Insects
Ionization
Lasioderma serricorne
Liposcelis bostrychophila
Mass spectroscopy
Oils & fats
Patchoulol
Pests
Pogostemon cablin
repellent activity
Toxicity
Tribolium castaneum
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Summary:The essential oil was obtained from the aerial parts of Pogostemon cablin by hydrodistillation. The chemical compounds of P. cablin essential oil were analyzed by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry. Eight compounds were totally identified and accounted for 92.4% of the oil. Patchoulol was the major component (51.1%), followed by phloroacetophenone (23.5%) and β-patchoulene (7.3%). The essential oil and its two major compounds patchoulol and phloroacetophenone were evaluated for their contact and repellent activities against Tribolium castaneum, Lasioderma serricorne, and Liposcelis bostrychophila. Results of bioassays indicated that the essential oil and patchoulol had great contact toxicity against three species of insects. Meanwhile, the essential oil and patchoulol showed great repellent activities against T. castaneum and L. bostrychophila but were mildly repellent to L. serricorne. Phloroacetophenone exhibited neither contact nor repellent activity against any of these target insects. This work emphasized the promising potential of P. cablin to control insect pests during storage.
ISSN:1094-2912
1532-2386
DOI:10.1080/10942912.2019.1648508