International Journal of Tropical Insect Science

, Volume 13, Issue 5, pp 705–708 | Cite as

Antifeedant Activity of Piper Guineense Schum & Thonn. Amides Against Larvae of the Sorghum Stem Borer Chilo Partellus (Swinhoe)

  • Baldwyn Torto
  • Ivan Addae-Mensah
  • Lambert Moreka
Research Article


Six amide alkaloids of Piper guineense were tested for antifeedant activity against fifth instar larvae of Chilo partellus in choice assays. These amides include piperine, Δα, β-dihydropiperine, wisanine, Δα, β-dihydrowisanine, trichostachine and N-isobutyl-trans-2-trans-4-eicosadienamide. Piperine and its dihydrosaturated derivative exhibited the most potentantifeedant activity. Δα, β-dihydrowisanine and trichostachine were intermediate in activity followed by wisanine. The N-isobutyl derivative was the least active. These results suggest that the presence of a methylenedioxybenzene and an alicyclic amide group in the compound may be crucial for high antifeedant activity.

Key Words

Antifeedant alkaloid piperine dihydropiperine wisanine dihydrowisanine trichostachine Piper guineense Chilo partellus 


Six amido-alcaloide de Piper guineense étaient testées pour son activité antinutritionelle contre les cinquième-instar larves de Chilo partellus en choix essais. Ces amides compennent piperine, Δα, β-dihydropiperine, wisanine, Δα, β-dihydrowisanine, trichostachine et N-isobutyl-trens-2-trans-4-eicosadienamide. Piperine et son dérivé dihydrosaturé exhibitaient la plus puis santé activité antinutritionelle. Δα, β-dihydrowisanine et trichostachine étaient intermédiates en activité suivi par wisanine. Le dérivé N-isobutyl était le plus actif. Ces résultats suggèrent que la présence d’un methylenedioxybenzene et d’un groupe amide cyclique dans le composé peut-être important pour une haute activitée antinutritionelle.

Mots Clés

Antinutritionelle alcaloide piperine dihydropiperine wisanine dihydrowisanine trichostachine Piper guineense Chilo partellus 


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Copyright information

© ICIPE 1992

Authors and Affiliations

  • Baldwyn Torto
    • 1
  • Ivan Addae-Mensah
    • 2
  • Lambert Moreka
    • 1
  1. 1.The International Centre of Insect Physiology and Ecology (ICIPE)NairobiKenya
  2. 2.Department of ChemistryUniversity of GhanaLegon, AccraGhana

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