Next Article in Journal
Synthesis and Photophysical Study of 2′-Deoxyuridines Labeled with Fluorene Derivatives
Previous Article in Journal
MiR-15a Decreases Bovine Mammary Epithelial Cell Viability and Lactation and Regulates Growth Hormone Receptor Expression
Article Menu

Export Article

Open AccessArticle
Molecules 2012, 17(10), 12049-12060; doi:10.3390/molecules171012049

Identification of Insecticidal Constituents of the Essential Oil of Curcuma wenyujin Rhizomes Active against Liposcelis bostrychophila Badonnel

1
Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China
2
Department of Plant Pathology, China Agricultural University, Haidian District, Beijing 100193, China
3
College of Resources Science and Technology, Beijing Normal University, Haidian District, Beijing 100875, China
*
Authors to whom correspondence should be addressed.
Received: 7 August 2012 / Revised: 8 October 2012 / Accepted: 9 October 2012 / Published: 15 October 2012
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [208 KB, uploaded 18 June 2014]   |  

Abstract

The aim of this research was to determine the chemical composition and insecticidal activity of the essential oil of Curcuma wenyujin Y.H. Chen et C. Ling rhizomes against the booklouse Liposcelis bostrychophila Badonnel and to isolate any insecticidal constituents from the essential oil. The essential oil of C. wenyujin rhizomes was obtained by hydrodistillation and analyzed by GC-MS. A total of 43 components of the essential oil were identified and the principal compounds in the essential oil were 1,8-cineole (15.26%), camphor (10.12%), germacrone (6.86%), β-elemene (6.33%), curzerene (6.70%), and β-elemenone (5.23%). followed by curzerenone (4.52%), curdione (4.45%) and linalool (4.43%). Based on bioactivity-guided fractionation, the two main active constituents were isolated from the essential oil and identified as 1,8-cineole and camphor. The essential oil of C. wenyujin rhizomes exhibited contact toxicity against L. bostrychophila with an LD50 value of 208.85 µg/cm2. Camphor (LD50 = 207.26 µg/cm2) exhibited stronger contact toxicity than 1,8-cineole (LD50 = 1048.75 µg/cm2) against booklouse. The essential oil of C. wenyujin (LC50 = 2.76 mg/L air) also possessed fumigant toxicity against L. bostrychophila, while the two constituents, camphor and 1,8-cineole had LC50 values of 1.03 mg/L air and 1.13 mg/L air, respectively. The results indicate that the essential oil of C. wenyujin rhizomes and its constituent compounds have potential for development as natural insecticides or fumigants for control of insects in stored grains.
Keywords: Liposcelis bostrychophila; Curcuma wenyujin; contact toxicity; fumigant; essential oil composition; 1,8-cineole; camphor Liposcelis bostrychophila; Curcuma wenyujin; contact toxicity; fumigant; essential oil composition; 1,8-cineole; camphor
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, Z.L.; Zhao, N.N.; Liu, C.M.; Zhou, L.; Du, S.S. Identification of Insecticidal Constituents of the Essential Oil of Curcuma wenyujin Rhizomes Active against Liposcelis bostrychophila Badonnel. Molecules 2012, 17, 12049-12060.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top