Phytochemical Constituents of Siam Weed ( Chromolaena Odorata ) and African Custard Apple ( Annona Senegalensis ) *

Content Provider	Semantic Scholar
Author	A. Agaba T. Fawole, Bamidele
Copyright Year	2016
Abstract	Siam weed (Chromolaena odorata) and closely related species of Annona senegalensis such as Annona muricata, Annona squamosa had been investigated for pesticidal activity for the control of plant-parasitic nematodes and other pests on crops. This study was carried out to provide some information on the phytochemical constituents in these plants. Siam weed (Chromolaena odorata) leaves and roots, African Custard Apple (Annona senegalensis) leaves and bark collected, air-dried and ground into powder were taken to The Central Laboratory, University of Ibadan for Infrared (IR) Analysis. Phytochemical analysis of the plant samples was carried out with standard methods in the Department of Pharmacognosy, University of Ibadan. The concentrations of some phytochemicals were determined. Results of IR revealed the functional groups in Chromolaena odorata and Annona senegalensis were alcohols, amides, alkenes, carbonyl, unsaturated/aromatic, carboxyl, metals and phenols. The chemical constituents were alkaloids, phenols, flavonoids, saponins, cardenolides, anthraquinones and tannins. Chromolaena odorata leaf contained total phenols 38.69 mg/g, tannins 41.09 mg/g, flavonoids 7.74 mg/g, saponins 331.76 mg/g, alkaloids 12.25mg/g while Chromolaena odorata root contained total phenols 14.33 mg/g, tannins 14.50 mg/g, flavonoids 1.54 mg/g, saponins 34.84 mg/g, alkaloids 11.58 mg/g. Annona senegalensis leaf contained total phenols 31.07 mg/g, tannins 31.73 mg/g, flavonoids 11.55 mg/g, saponins 103.32mg/g, alkaloids 12.02 mg/g and Annona senegalensis bark contained total phenols 91.27 mg/g, tannins 97.67 mg/g, flavonoids 0.51 mg/g, saponins 156.28 mg/g, alkaloids 14.74 mg/g. The pesticidal activity of these plants might be attributed to the phytochemicals contained.
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Alternate Webpage(s)	http://www.cibtech.org/J-FOOD-AGRI-VETERINARY-SCIENCES/PUBLICATIONS/2016/VOL_6_NO_1/07-JFAV-007-THOMAS-PHYTOCHEMICAL.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article