• Login
    View Item 
    •   Repository Home
    • Research Papers (RP)
    • RP-School of Pure and Applied Sciences
    • RP-Department of Chemistry
    • View Item
    •   Repository Home
    • Research Papers (RP)
    • RP-School of Pure and Applied Sciences
    • RP-Department of Chemistry
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Differential attractiveness of human foot odours to Anopheles gambiae Giles sensu stricto (Diptera: Culicidae) and variation in their chemical composition

    Thumbnail
    View/Open
    Abstract (45.58Kb)
    Date
    2013-10
    Author
    Hassanali, Ahmed
    Omolo, M.O.
    Njiru, B.
    Ndiege, I. O.
    Musau, R. M.
    Metadata
    Show full item record
    Abstract
    Counter flow geometry (CFG) traps (American Biophysics) baited with foot odours (adsorbed overnight on a combination of a nylon and a cotton socks) from 4 groups of 4 male volunteers were initially used in a screen-house to compare and grade the attractiveness of Anopheles gambiae Giles sensu stricto to these odours. Ten individuals were then selected from the 4 groups for further grading in which mosquito attractiveness to odours adsorbed on socks worn by each of the individuals was compared against a control (clean, un-worn cotton and nylon socks). A gradation of attractiveness was found, with the most attractive foot odour catching 8-fold more mosquitoes than the least attractive one (t-test, p = 0.001). For comparison of the chromatographic profiles of the foot odours and identification of their constituents, six adsorbents (tenax, chromsorb, porapak Q, activated charcoal, reverse phase octadecyl and octyl bonded silica) were evaluated for their suitability in trapping the volatiles in a static mode. Of these, porapak Q was found to be the most effective. Comparison of the gas-chromatographic (GC) and gas chromatography–linked mass spectrometry (GC–MS) profiles of blends collected from the most and least attractive feet on porapak Q adsorbent revealed both qualitative and quantitative differences. The implication of our finding on differential attraction of An. gambiae to their preferred feeding site of different human subjects is highlighted.
    URI
    http://ir-library.ku.ac.ke/handle/123456789/8291
    Collections
    • RP-Department of Chemistry [450]

    Designed by Library ICT Team copyright © 2017 
    Contact Us | Send Feedback

     

     

    Browse

    All of RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Designed by Library ICT Team copyright © 2017 
    Contact Us | Send Feedback