Economic Botany

, Volume 20, Issue 3, pp 279–284 | Cite as

Recovery of natural insecticide fromTephrosia vogelii. I. Efficiency of rotenoid extraction from fresh and oven-dried leaves

  • Donald K. Barnes
  • Ruben H. Freyre


Comparisons were made among several methods of rotenoid extraction from dry and freshTephrosia leaves. Significantly more rotenoids were recovered from fresh leaves than from dried leaves. Loss of rotenoids during drying was assumed to be the cause for lower rotenoid recovery from dry leaves. Several extraction methods for fresh leaves were found to be significantly better than the currently used Soxhlet procedure.


Rotenone Fresh Leaf Leaf Material Cold Extraction Soxhlet Method 
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Literature Cited

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    Irvine, J. E. and R. H. Freyre. 1959. The occurrence of rotenoids in some species of the genusTephrosia. J. Agr. Food Chem.7: 106–107.CrossRefGoogle Scholar
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    — 1959. Varietal differences in the rotenoid content ofTephrosia vogelii. Agron. J.51: 664–665.Google Scholar
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    Jones, M. A. 1945. Application of a modified red-color test for rotenone and related compounds toDerris andLonchocarpus. J. Assoc. Off. Agr. Chemists28: 352–359.Google Scholar
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    Roark, R. C. 1937.Tephrosia as an insecticide—a review of the literature. U. S. Dept. Agr. Bur. Ent. Plant Quarant., Div. Insecticide Invest. E-402.Google Scholar
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    Wilbaux, R. 1935. Considerations surTephrosia vogelii Hook. f. et un certain nombre d’especes voisines. Ann. Gembloux.41: 1–30, 41-85.Google Scholar

Copyright information

© The New York Botanical Garden 1966

Authors and Affiliations

  • Donald K. Barnes
    • 1
  • Ruben H. Freyre
    • 2
  1. 1.Plant Industry StationBeltsville
  2. 2.Federal Experiment Station, Crops Research Division, Agricultural Research ServiceUnited States Department of AgricultureMayagüez

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