@article{A. Dare_Nwude_I. Rekwot_Mamman_O. Omontese_2013, title={Screening of some nigerian plants for pyrrolizidine alkaloids}, volume={2}, url={https://www.sjournals.com/index.php/sjas/article/view/1076}, abstractNote={<div> <p>Pyrrolizidine alkaloids (PAs) are an important class of plant toxins whose hepato- and pneumo-toxicity have been extensively studied.&nbsp; Twenty three field plant materials (leaves, flowers, pulp, seeds) were collected, identified and screened for unsaturated PAs. A field test method with Ehrlich reagent was used. The absorbance of Ehrlich colour of the PAs and N-oxides were obtained at 565nm. Positive reactions were obtained from<em>&nbsp;Borreria</em>&nbsp;<em>verticillata;</em>&nbsp;<em>Guiera</em>&nbsp;<em>senegalensis;</em>&nbsp;<em>Tamarindus indica</em>;&nbsp;<em>Crotolaria doniana; C. gorensis; C. glaucoides; C. mucronata; C. naragutensis; C. lachnosema</em>&nbsp;and&nbsp;<em>C. retusa</em>. The occurrence of PAs are reported for the first time in&nbsp;<em>C. doniana</em>&nbsp;and&nbsp;<em>C. glaucoides.&nbsp; B. verticillata</em>,&nbsp;&nbsp;<em>G. senegalensis&nbsp;</em>and<em>&nbsp;T. indica</em>&nbsp;gave positive Ehrlich reactions which could be due to PAs or other groups giving positive Ehrlich reaction. A number of medicinal and food plants gave negative Ehrlich reaction. Further work is required to confirm and identify the alkaloids in the plants that gave positive reactions.</p> </div>}, number={6}, journal={Scientific Journal of Animal Science}, author={A. Dare, T. and Nwude, N. and I. Rekwot, P. and Mamman, M. and O. Omontese, B.}, year={2013}, month={Jun.}, pages={138-143} }