Abstract Title:

Food protective effect of geraniol and its congeners against stored food mites.

Abstract Source:

J Food Prot. 2009 Jul ;72(7):1468-71. PMID: 19681271

Abstract Author(s):

J H Jeon, C H Lee, H S Lee

Article Affiliation:

Department of Agricultural Chemistry and Institute of Agricultural Science and Technology, College of Agriculture and Life Science, Chonbuk National University, Chonju 561-756, South Korea.


The acaricidal activities of compounds derived from the oil of Pelargonium graveolens leaves against the storage food mite, Tyrophagus putrescentiae, were compared with the activity of a commercial acaricide, benzyl benzoate, in an impregnated fabric disk bioassay. Purification of the active constituent from P. graveolens was accomplished by silica gel chromatography and high-performance liquid chromatography. Structural analysis of the active constituent by 1H nuclear magnetic resonance (NMR), 13C-NMR, 1H-13C shift correlated spectroscopy NMR, and distortionless enhancement by polarization transfer NMR identified trans-3,7-dimethyl-2,6-octadien-1-ol (geraniol). Based on the 50% lethal dose values, the most toxic compounds against T. putrescentiae were geraniol (1.95 microg/cm3), which was followed by nerol (2.21 microg/cm3), citral (9.65 microg/cm3), benzyl benzoate (11.27 microg/cm3), and beta-citronellol (15.86 microg/cm3). Our results suggest that geraniol is more effective in controlling T. putrescentiae than benzyl benzoate is. Furthermore, geraniol, which is used as a flavoring for beverages, candies, ice creams, and baked goods and congeners (citral and nerol), may be useful for managing populations of T. putrescentiae.

Study Type : Environmental

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