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Scholars Academic Journal of Biosciences | Volume-4 | Issue-08
Analysis by HPLC of organic extracts of Tapinanthus bangwensis used for the conservation of stocks of Zea mays (Linné) and Vigna unguilculata L. Walf against two principal devastating insects (Sitophilus zeamais and Callosobruchus maculatus)
El Hadji Gorgui DIOUF, Abdoulaye SAMB, Moussoukhoye DIOP, Aboubacary Sène, Sam Gueye
Published: Aug. 30, 2016 |
270
198
DOI: 10.36347/sajb.2016.v04i08.007
Pages: 637-643
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Abstract
The objective is to find the alternate ones with insecticides of synthesis, the extracts of plants are used more and more by the peasants to protect stocks from harvest against the devastating insects. Thus, a chemical analysis by liquid chromatography high efficiency (HPLC) is carried out on the organic extracts, of Tapinanthus bangwensis, tested on Sitophilus zeamaïs and Callosobruchus maculatus. The results of the analysis by HPLC show that the extracts contain polar compounds. These results are corroborated by the phyotochimic tests with the identification of molecules (alkaloids, flavanoides, tannins…) likely to be responsible for this insecticidal activity.